Solve the problem.When going more than 38 miles per hour, the gas mileage of a certain car fits the model 
where x is the speed of the car in miles per hour and y is the miles per gallon of gasoline. Based on this model, at what speed will the car average 15 miles per gallon? (Round to nearest whole number.)
A. 149
B. 48
C. 73
D. 98
Answer: C
Mathematics
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Evaluate the expression for the given replacement values. Write the answer in simplest form.x - y for x = 
, y = 
A. 
B. 
C. 
D. 
Mathematics
Let f be the function defined by 
.
Find
,
,
, 
, and
.
?
A. 
, 
, 
, 
, 
?
B. 
, 
, 
, 
?
C. 
, 
, 
, 
, 
?
D. 
, 
, 
, 
, 
?
E. 
, 
, 
, 
, 
?
Mathematics
Solve the problem.Find three consecutive odd integers such that the sum of all three is 36 less than the product of the smaller two.
A. 7, 9, 11 B. 5, 7, 9 C. 7, 9, 11, or -6, -4, -2 D. -6, -4, -2
Mathematics
Graph the numbers on the real number line.x ? 2
A. 
B. 
C. 
D. 
Mathematics