How many seven-digit phone numbers are available in area code 837 if no phone number can begin with 0 and 1?
A. 1,000,000
B. 8,000,000
C. 4,500,000
Answer: B
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Solve.The length L of a rafter on a building's roof is calculated using the formula L = 
. Suppose that H2, the maximum roof height, is 15 ft; H1, the minimum wall height, is 8.5 feet; and W, the width of the building, is 26 feet. Calculate the rafter length, not including allowance for overhang. (Round to the nearest tenth.)
A. 24.9 ft B. 710.2 ft C. 26.8 ft D. 718.3 ft
Provide an appropriate response.
What is the interest on $25,000 principal at the interest rate of 6% for 
year?
A. $375 B. $416 C. $1,500 D. $104
Solve the problem.An arrow is fired into the air with an initial velocity of 128 feet per second. The height in feet of the arrow t seconds after it was shot into the air is given by the function 
Find the maximum height of the arrow.
A. 256 ft B. 768 ft C. 64 ft D. 448 ft
Solve the problem.Find 10% of 200 boxes.
A. 200 boxes B. 20 boxes C. 0.2 boxes D. 2 boxes