Determine if the following is a linear equation in one variable. If not, state why.3(2x - 4) = 5(x + 5)
A. It is not a linear equation in one variable because it has more than one variable.
B. It is a linear equation in one variable.
C. It is not a linear equation in one variable because it is not an equation.
D. It is not a linear equation in one variable because 2x has an exponent other than 1.
Answer: B
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Solve the problem.You brake your car from a speed of 60 mph. The table shows data that represent your car's speed versus the amount of time elapsed from the moment that you began to brake.
Graph the data. For what interval of time is the speed increasing? For what interval of time is the speed decreasing? For what interval of time is the speed constant?
A. 
| Elapsed Time (seconds) |
0 to 4 seconds; None; 4 to 6 seconds
B.
| Elapsed Time (seconds) |
0 to 5 seconds; None; 5 to 6 seconds
C.
| Elapsed Time (seconds) |
None; 0 to 4 seconds; 4 to 6 seconds
D.
| Elapsed Time (seconds) |
None; 0 to 5 seconds; 5 to 6 seconds
Find the commission earned or the rate of commission. Round money answers to the nearest cent if necessary.Sales: $160 Commission: $3.20
A. 4% B. 3% C. 2% D. 0.2%
Solve the equation.t - 1 = 16
A. t = -15 B. t = 17 C. t =15 D. t = -17
Use synthetic division and the Remainder Theorem to find the function value.f(x) = 4x3 - 12x2 - 9x; find f
A. 0 B. 1 C. 2 D. 4