Multiply. Assume all variables represent nonnegative real numbers.
(
- 4
)
A. 
- 4
B. 
+ 44
C. 
- 44
D. 
+ 4
Answer: C
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First, round the mixed numbers to the nearest whole number and estimate the answer. Then find the exact answer and write it in simplest form.4
÷ 3
A. 2
B. 1
C. 1
D. 1
Simplify.
- 
A. 3
B. 
C. 
D. 0
If the markup policy for the store is assumed to be linear, find a function r = m(w) that expresses the retail price r as a function of the wholesale price w.
A music store sells a CD with a wholesale price of $5 for $11.25 and one with a wholesale price of $15.00 for $23.75. A) r = m(w) = 1.6w + 5 C) r = m(w) = 1.6w – 5 B) r = m(w) = 5w + 1.6 D) r = m(w) = 5w – 1.6
Complete the ordered pair so that it is a solution of the given linear equation.7x + y = -40;(-7, ), (0, ), (1, )
A. (-7, 9) (0, -58) (1, -47) B. (-7, 9) (0, 0) (1, -47) C. (-7, 9) (0, -40) (1, -47) D. (-7, -7) (0, -40) (1, -47)