1. Divide.

7/1616/7

2. Use the rules of divisibility to determine whether 78,431

is divisible by the following numbers 2, 3, 4, 5, 6, 8, 9, 10

3.)Determine the next two sets of twin primes that follow set 11, 13.

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4.)Evaluate the expression using the order of operations.

41/752/2521/25

5.) A mountain is 19,509 feet above sea level, and a valley is 285 feet below sea level. What is the difference in elevation between the mountain and the valley?

6.) Katie recently retired and met with her financial planner. She arranged to receive

$50,000 the first year. Because of inflation, each year she will get $310 more than she received the previous year.

.a) What income will she receive in her sixth year of retirement?

b) How much money will she have received in total during her first 6 years of retirement?

7.) Evaluate the expressions.

a)2^5*2^2

b)(-2)^5 * (-2)^2