The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).x2 + 4y2 = 4
A. 4 cos2 ? + sin2 ? = 4r
B. cos2 ? + 4 sin2 ? = 4r
C. r2(cos2 ? + 4 sin2 ?) = 4
D. r2(4 cos2 ? + sin2 ?) = 4
Answer: C
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Solve using a proportion. Round your answer to the nearest hundredth when necessary.Jack did not notice that he had run out of money in his checking account so he continues making purchases. After 2 days, his balance is 
If he continues spending money at this rate, what will his balance be after 12 days?
A. -$24 B. -$132 C. -$66 D. -$12
Graph the function as a solid line or curve and its inverse as a dashed line or curve on the same axes.f(x) = 
x + 3
A. 
B. 
C. 
D. 
Answer the question.Which of the following transformations is a function?
A. Random Number from 1 to 10 ? Random Number from 1 to 10 B. Daily High Temperature ? Date C. Social Security Number ? Legal Last Name D. Last Name ? Telephone Number
Multiply. Write the answer in lowest terms and as a whole or mixed number where possible.
? 308 ? 
A. 57
B. 48
C. 52
D. 52