Solve the system of equations by using substitution. 
A. x = -2, y = 3
B. x = 7, y = 12
C. x = 12, y = -2
D. x = 3, y = 7
Answer: C
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Find the product. Simplify before performing the multiplication.
? 
A. 
B. 
C. 
D. 
Multiply. Write the answer in simplest form.2
? 
A. 4
B. 2
C. 
D. 
Find the intercepts and then graph the line.3x + y = -6
A. x-intercept: (-2, 0); y-intercept: (0, -6)
B. x-intercept: (-2, 0); y-intercept: (0, 6)
C. x-intercept: (2, 0); y-intercept: (0, -6)
D. x-intercept: (2, 0); y-intercept: (0, 6)
Solve.In 1985, the number of female athletes participating in Summer Olympic-Type Games was 550. In 1996, about 3550 participated in the Summer Olympics in Atlanta. Assuming that 
and that the exponential model applies, find the value of k rounded to the hundredths place, and write the function.
A. k = 0.16; P(t) = 500e0.16t B. k = 0.17; P(t) = 500e0.27t C. k = 0.19; P(t) = 500e0.19t D. k = 0.17; P(t) = 500e0.17t