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Section A: Fun with Algebra

1.If (x=7), what is the value of (7x + 1)?

2.Find(k) : if (k - 7 = 2)One basket contains (4a) apples, while another contains (6a) apples. If a = 2, how many apples are there in total?Given (n = 4), what is the value of (n^2 + 5)?

Six letters are arranged in different sequences and each permutation has equal probability. The letters are: one S, one T, one C, one R, and two E’s. What is the probability that the sequence SECRET will occur?