Find the product.(x + 2y)3
A. 3(x + 2y)
B. x3 + 2x2y + 4xy + 4xy2 + 8y2 + 8y3
C. x3 + 8y3
D. x3 + 6x2y + 12xy2 + 8y3
Answer: D
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Solve the problem.V = 
?r3, where r is the radius, in centimeters. By approximately how much does the volume of a sphere increase when the radius is increased from 1.0 cm to 1.2 cm? (Use 3.14 for ?.)
A. 2.7 cm3 B. 0.5 cm3 C. 2.3 cm3 D. 2.5 cm3
Evaluate.(-8)3
A. -24 B. -512 C. 512 D. 24
Solve.A designer dress is reduced 25% from the original price of $3100. What is the sale price?
A. $77.50 B. $2325.00 C. $3022.50 D. $775.00
I have a habit of getting up before the sun rises. My socks are all mixed up in the drawer, which contains 20 blue and 18 black socks. I reach into the drawer and grab some socks in the dark. How many socks minimum do I need to take from the drawer to be sure that I have a matched pair? ?
A. 18 socks B. 21 socks C. 2 socks D. 3 socks E. 19 socks