Determine whether the function is one-to-one.f(x) = 7x + 8
A. One-to-one
B. Not one-to-one
Answer: A
Mathematics
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Solve the problem.Each gallon of shingle stain covers 120 square feet. How many gallons are needed to cover 480 square feet?
A. 2 gallons B. 4 gallons C. 3 gallons D. 5 gallons
Mathematics
Use the properties of equality to solve the equation.-7x = 2
A. - 
B. 
C. - 
D. 
Mathematics
Determine graphically the x-value when y = 6 in the given equation.y = 3x
A. 2;
B. 6;
C. 18;
D. 3;
Mathematics
Round the numbers so that there is only one non-zero digit, and estimate the answer. Then perform the indicated operation to find the exact answer.13.85 + 31.9 + 9.2
A. estimate: 49; exact: 54.95 B. estimate: 49; exact: 44.95 C. estimate: 50; exact: 55.95 D. estimate: 49; exact: 53.95
Mathematics