Solve the problem.Find the slope (pitch) of a roof that rises 3.71 feet vertically over a horizontal distance of 10.6 feet.
A. 2.86
B. 0.4
C. 39.33
D. 0.35
Answer: D
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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: $380 Amount of tax: $34.20
A. 0.9%, $414.20 B. 11%, $414.20 C. 10%, $414.20 D. 9%, $414.20
Solve the equation.
x - 1 = 
x + 5
A. - 56
B. - 14
C. 
D. - 
State whether the function is a polynomial function or not. If it is, give its degree. If it is not, tell why not.f(x) = 4x + 3x5
A. Yes; degree 3 B. Yes; degree 1 C. Yes; degree 5 D. Yes; degree 4
Solve the problem.A box contains a radioactive substance. The number of kilograms r(t) at time t years is given by the formula 
How long will it take until only one-half kilogram of the radioactive substance is left in the box?
A. 184.71 yr B. 738.83 yr C. 369.41 yr D. 3694.13 yr