coffeecrab207

1. Why is the sky blue?

2. Why does the sun rise in the east and set in the west?

How does the process of photosynthesis contribute to the production of oxygen in plants?

What is meant solar system? 

which is the fastest means of communication?. 

Define HTML

4. Why does the moon change shape?

1. Estimate the internal pressure of water vapor at 1.00bar and 400K, treating it as a van der Waals gas, where you may simplify the problem by assuming that the molar volume can be predicted form the perfect gas equation. The van der Waals constant for water is a=5.464 dm3 atm mol-2

What is Pythagoras theorem?

1. Solve the equation 3x + 7 = 22.

Solve for d.

d + 2 = 98

d = ?

boyles law chemistry

What is the chemical name for rust

Hello, can u describe the heart function 

What is the default orientation of a powerpoint slide?

[A] Microsoft
[B] Oracle
[C] Alphabet
[D] Intel

x * x - 5x + 6
The x is actually x squared. Whats the answer?

2 to the power of 4

10% of 240 = 20%of x

What is x

30% of 800=? Calculate 

x +15=5x+10

Calculate value of x

X+12=15 calculate x

5x +13=10 evaluate value of x

The working principle of a washing machine is

A) reverse osmosis     B) diffusion     C) centrifugation     D) dialysis

The length and width of a rectangle are consecutive evenintegers. The perimeter is 100 meters. Find the length and width.The length is ___ meters long while the width is ____ meters.

The area of a rectangle is 42 ft^2 , and the length of the rectangle is 5 ft more than double the width. Find the dimensions of the rectangle.

Length?

Width?

The length of a rectangle is 1 yd less than twice the width, and the area of the rectangle is 21 yd^2 . Find the dimensions of the rectangle.

Length?

Width?

___C4H8 (g) + ____O2 (g) ---> ____CO2 (g) + _____ H2O (g)

(Balance)

The length of a rectangle is 9 in. more than twice its width. If the perimeter of the rectangle is 54 in., find the width of the rectangle.

The area of a rectangle is 99 ft^2 , and the length of the rectangle is 7 ft more than twice the width. Find the dimensions of the rectangle.

Length?

Width?

The length of a rectangle is 2 in. more than twice its width. If the perimeter of the rectangle is 28 in., find the width of the rectangle.

the perimeter of a rectangle is 28 feet. find the length of the rectangle if the length is 4 less than two times the width

The area of a rectangle is 32 cm² and its width is1/2 the length. what is the perimeter of the rectangle? please showwork.

One number is 4 less than a second number. Twice the second number is 30 more than 4 times the first number. Find the two numbers.

One number is 5 less than a second number. Twice the second number is 5 less than 5 times the first. Find the two numbers.

one number is 1 less than a second number. Twice the second number is 31 less than 5 times the first. Find the smaller of two numbers.