Solve the problem.A sum of money amounting to $6.50 consists of dimes and quarters. If there are 35 coins in all, how many are quarters?
A. 25 quarters
B. 17 quarters
C. 20 quarters
D. 15 quarters
Answer: C
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Simplify.
A. 8 B. 128 C. 64 D. 4
Solve the initial value problem.
= 2x-3/4, y(1) = 1
A. y =- 
x-7/4 - 
B. y = 8x1/4 + 8
C. y = 8x1/4 - 7
D. y = 2x1/4 - 1
Solve the problem using the quadratic formula.When water runs out of a hole in a cylindrical container, the height of the water in the container can often be modeled by a quadratic function. Assume that the height of the water in a particular metal can with a small hole can be modeled by h(x) = 0.0005x2 - 0.17x + 8, where x is the time (sec) and h is the height (cm). Use the quadratic formula to estimate the earliest time when the height is 3 cm. Round your answer to the nearest second.
A. 40 sec B. 39 sec C. 33 sec D. 37 sec
Graph the function.A car rental company charges $25 per day or fraction of a day to rent a station wagon. Graph the ordered pairs (days, cost).
A. 
B. 
C. 
D. 