Find the commission earned or the rate of commission. Round money answers to the nearest cent if necessary.Sales: $820 Commission rate: 6%
A. $57.40
B. $49.20
C. $492.00
D. $41
Answer: B
Mathematics
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Use a proportion to solve the problem.On a map, the length of a nature-center trail is 6.3 centimeters. If the scale is 1 centimeters to 23 kilometers, what is the actual length of the trail?
A. 145.9 km B. 289.8 km C. 148.9 km D. 144.9 km
Mathematics
Answer the question.For f(x) = x2 - 64 and g(x) = 2x + 3, what is the domain of 
A. All real numbers
B. 
x ? - 
C. 
D. 
x ? - 
Mathematics
Use a graphing utility to graph the polar equation.r cos ? = 26
-6
A.
| 6 |
| -6 |
B.
| 6 |
| -6 |
C.
| 6 |
| -6 |
D.
| 6 |
| -6 |
Mathematics
Simplify the exponential expression.83 ? 88
A. 811 B. 6424 C. 6411 D. 824
Mathematics