Solve the problem.A paper boy collected $6.90, part in nickels and part in dimes. If the number of nickels was 13 more than one-half the number of dimes, how many nickels were there?
A. 38 nickels
B. 50 nickels
C. 4 nickels
D. 28 nickels
Answer: A
Mathematics
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Solve the problem.Below is a map of a trail through a forest preserve. Using the scale on the map, estimate the distance of the route starting at the fishing dock and ending at the ranger station. 
A. ? 16 km B. ? 28 km C. ? 32 km D. ? 20 km
Mathematics
Evaluate the function for the given value. Round to the nearest thousandth.f(x) = e2x; f
A. 1.948 B. 0.002 C. 0.453 D. 0.513
Mathematics
Refer to the right triangle ABC with C = 90°.Assuming that a = 7 and c = 25, find b.
A. 24 B. 20 C. 625 D. 5
Mathematics
Evaluate the integral.
2x dx
A. - 
+ 
cot 2x + C
B. - 
- 
cot 2x + x + C
C. - 
+ 
cot 2x - x + C
D. - 
+ 
cot 2x + x + C
Mathematics