Find the unknown value in the percent proportion 
Round to the nearest tenth, if necessary.part = 20, percent = 4
A. whole = 50
B. whole = 500
C. whole = 250
D. whole = 20
Answer: B
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Evaluate the polynomial for the given values of x and y.x3 + 3x2y + 3xy2 + y3; x = -3 and y = -2
A. -35 B. -125 C. 25 D. -15
Solve the problem.On the September 15 billing date, the Jeffersons had a balance due of $113.55 on their credit card. The transactions during the following month were: 
The interest rate on the card is 1.8% per month. Using the previous balance method, find the finance charge on October 15.
A. $2.04 B. $0.39 C. $51.59 D. $49.93
Decide whether or not the given equation is an identity.cos2 y + 1 = 2 cos2 y + sin2 y
A. Yes B. No
Find the x- and y-intercepts. If no x-intercepts exist, state so. Round to two decimal places if necessary.y = x2 - 4
A. No x-intercept; y-intercept (0, 0) B. x-intercept (2, 0); y-intercept (0, -4) C. x-intercepts (0, 2) and (0, -2); y-intercept (-4, 0) D. x-intercepts (2, 0) and (-2, 0); y-intercept (0, -4)