Simplify the expression.-4(10r + 7s) + 9(9r + 8s)
A. 41r + 44s
B. 6r + 3s
C. -68rs
D. 41r + 7s
Answer: A
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Solve the problem.A sales representative is paid a commission rate of 2.9%. Find her commission if she sold $143,770 worth of goods last month.
A. $49,575.86 B. $147,939.33 C. $4957.59 D. $4169.33
Provide an appropriate response. When applying the standard order of operations to a series of operations, which of the following operations would you perform first?
A. division B. addition C. any operation inside parentheses D. multiplication
Solve the system of equations using substitution.
A. x = 4, y = -3; x = 3, y = -4 B. x = 4, y = 3; x = -3, y = -4 C. x = -4, y = 3; x = -3, y = 4 D. x = -4, y = -3; x = -3, y = -4
Evaluate the expression. Write your answer without exponents.(-4)-1
A. 4
B. 
C. - 
D. -4