Suppose 100 people counted the number of cars passing an intersection in one hour. Due to error, not all people get the same value. The mean is 75 and the standard deviation is 1. Use the sketch to find how many people report the following. 
Less than 76 cars
A. 83 people
B. 68 people
C. 34 people
D. 84 people
Answer: D
Mathematics
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A sign is hung on the wall of a building as in the figure below. Given the downward force and the horizontal force, determine the minimum required strength of a cable from point A to point B.
Downward force: 25 pounds; horizontal force: 60 pounds
A. 35 pounds B. 65 pounds C. 54.54 pounds D. 85 pounds
Mathematics
Use the distributive property to multiply. Then, if possible, simplify the resulting expression.3(7 + m)
A. 21m B. 21 + m C. 21 + 7m D. 21 + 3m
Mathematics
Solve.
= 
A. x = 
B. x = 9
C. x = 19
D. x = 38
Mathematics
Multiply the monomials.x3 ? x2
A. x6 B. x3 + x2 C. 2x5 D. x5
Mathematics