Use the distributive property to rewrite the expression. Simplify if possible.- 
(21x + 7y)
A. -24x + 8y
B. -32x
C. -24x - 8y
D. 24x + 8y
Answer: C
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If a = 6.18, what is the value of a2?
a. 12.36 b. 18.54 c. 38.19 d. 263.03 e. 242.21
Find the distance between the pair of points. Give your answer in exact form and where appropriate find an approximation to three decimal places.(-7, 1) and (7, -7)
A. 2
? 16.125
B. 132
C. 132
? 758.282
D. 22
Find the square root. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Solve.For a party, Mike is making a eight-layer torte, which consists of eight 8-inch-diameter cake layers with a cream topping on each. He knows that one recipe of cream topping will cover 50 square inches of cake. How many batches of the topping must he make to complete his torte? (Use ? = 3.14 as an approximate value.)
A. 32 batches B. 12 batches C. 11 batches D. 9 batches