Multiply.(-7) × 7
A. -42
B. 39
C. 49
D. -49
Answer: D
Mathematics
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Find an exponential model for the following data set. Round your answer to two decimal places. t 0 3 6 9 y 77.09 56.20 40.97 29.87?
A. 
B. ?
C. ?
D. ?
Mathematics
Solve the problem.Mario saved 0.6 of what he earned over the summer. Write this decimal as a percent.
A. 600% B. 0.06% C. 60% D. 0.6%
Mathematics
Perform the indicated operations. Assume variables represent positive real numbers.y3/13(y2/13 - 9y4/13)
A. y5/13 - 9y7/13 B. y6/169 - 9y12/169 C. y1/13 - 9y-1/13 D. y3/2 - 9y3/4
Mathematics
Solve by separating the two absolute values into equal and opposite cases.
= 
A. all real-number solutions
B. 
C. 
D. ?
Mathematics