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There are red, blue and yellow-coloured balls in a box. Half of the balls are red. There are 12 blue balls and three times as many yellow balls as blue balls. How many balis are there altogether?

whats the 1+1

Three bakeries had a total of 380 cupcakes at first.
Bakery A sold 1/2 of its cupcakes. Bakery B sold 2/3 of its cupcakes and Bakery C sold 4/5 of its cupcakes. They sold the same number of cupcakes. How many cupcakes did each bakery sell?

Half of the pens at a stationary shop are blue. 1/8 of the remaining pens are red, while the remaining pens are black. If there are 210 more black pens than red pens, how many pens are there altogether?

a) calculate the number of degrees for a measure of   sketch this angle in standard position.

b) calculate the number of radians for a meaure of -210degrees. sketch this angle in standard position.

What is the number of degrees in the acute angle formed by the hands of a clock at 6:50?

Cathy has some balloons. She gave Peter 1/4 of them, and gave Paul 1/12 more than what she gave Peter. If Cathy had given away 42 balloons in total, how many balloons has she left?

 In a second-hand bookshop, story books are sold at $12 each and comic books are sold at $8 each. At first, there were 50% more story books than comic books. After some time, 2/3 of the story books and all the comic books were sold. The shop received $6400. When all the books were sold, how much would the shop receive?/

Suppose you have deposited in an account with interest compounded quarterly. After years, the account has grown to . What is the interest rate on this account?

Lenny earns a over the summer working at the waterpark. He deposited half of the money in an account that earns interest compounded monthly. He deposited another half of a buddy in an account that earns interest compounded continuously. Assuming there are no other deposits or withdrawals, Find the difference of the amount earned on his two investments after years. 

After hosting a party Choe has 3/1/8 pizza left she gives josap 1/1/2 for helping her clean up. how much dose cloe have after giving josah pizza