Find the amount of sales tax or tax rate and the total cost. Round money answers to the nearest cent if necessary.Amount of sale: $650 Amount of tax: $39.00
A. 0.6%, $689.00
B. 6%, $689.00
C. 8%, $689.00
D. 7%, $689.00
Answer: B
Mathematics
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Factor when possible. If the polynomial is prime, say so.x2 - x - 40
A. (x + 5)(x - 8) B. (x - 40)(x + 1) C. (x - 5)2 D. prime
Mathematics
For the given functions f and g, find the requested function and state its domain.f(x) = 16 - x2; g(x) = 4 - xFind f + g.
A. (f + g)(x) = 4 + x; (-?, -4) ? (-4, ?) B. (f + g)(x) = x3 - 4x2 - 16x + 64; (-?, ?) C. (f + g)(x) = -x2 - x + 20; (-?, ?) D. (f + g)(x) = -x2 + x + 12; (-?, ?)
Mathematics
What is the value of the function 
Round to three decimal places.
a. 376.394 b. 223.774 c. 18.232 d. 151.492
Mathematics
Subtract and, if possible, simplify.
- 
A. 
B. - 
C. - 
D. 
Mathematics