Simplify the given expression.7 ? 4 - 15 ÷ 5
A. 
B. 25
C. 31
D. 0
Answer: B
Mathematics
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Find the area of the figure. Use 3.14 for ?. Round approximations to the nearest tenth.
a = 16.0 ft, b = 42.0 ft
A. 873.0 ft2 B. Not enough data C. 571.5 ft2 D. 772.5 ft2
Mathematics
Estimate the square root of the following number, n, by finding a natural number a such that a < 
< a + 1.65
A. 81 B. 64 C. 8 D. 9
Mathematics
Evaluate the expression.(-4)-1
A. -4
B. - 
C. 
D. 4
Mathematics
Solve the problem.The Lucas numbers are defined recursively by L1 = 1, L2 = 3, LN = LN-1 + LN-2. The value of L7/L6 is approximately
A. 1.611. B. 0.618. C. 1.17. D. 6. E. 4.584.
Mathematics