If y varies directly as x, write a general formula to describe the variation.y = 6 when x = 16
A. y = 
x
B. y = 2x
C. y = x - 10
D. y = 
x
Answer: D
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Rewrite the polynomial in descending order.Rewrite p4q4 + 4p2q2 - 6p3q + pq3 + 5p6 in descending powers of p.
A. p4q4 + pq3 + 4p2q2 - 6p3q + 5p6 B. 5p6 + p4q4 + 4p2q2 - 6p3q + pq3 C. 5p6 + p4q4 - 6p3q + 4p2q2 + pq3 D. 5p6 + p4q4 - 6p3q + pq3 + 4p2q2
Use the compound interest formulas A = P
nt and 
to solve.Find the accumulated value of an investment of $8000 at 6.25% compounded annually for 19 years.
A. $23,823.79 B. $25,312.78 C. $17,000.00 D. $17,500.00
Simplify the expression. Assume that all variables are positive when they appear.
A. 7xy
B. 7xy
C. 2xy
D. 7xy
Factor completely. If the polynomial cannot be factored, say it is prime.(2x - 2)3 + 125
A. (2x + 3)(4x2 - 18x + 39) B. (2x - 7)(4x2 + 2x + 19) C. (2x + 3)(4x2 + 2x + 39) D. (2x + 3)(4x2 + 2x + 19)