Write the word phrase as an algebraic expression. Use x to represent the unknown value.The sum of a number and 68
A. 68x
B. 68 - x
C. 68
D. x + 68
Answer: D
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Find the GCD for the given numbers by an appropriate method.176 and 189
A. 6 B. 77 C. 88 D. 1
Solve the problem.At speeds greater than 38 miles per hour, the gas mileage of a certain car can be modeled by the equation
where x is the speed of the car in miles per hour and y is the gas mileage in miles per gallon. Based on this model, at what speed will the car average 15 miles per gallon? Round to the nearest whole number.
A. 98 mph B. 73 mph C. 48 mph D. 149 mph
Find a cubic function 
that has a local maximum value of 112 at 1 and a local minimum value of –1,184 at 7.
What will be an ideal response?
A canoeist rows downstream in 0.5 hours and back upstream in 4 hours. What is the rate of the current if the distance rowed is 4 miles in each direction? ?
A. 4.5 mph B. 3.5 mph C. 4 mph D. 2 mph E. 7 mph