For the given expression, write two equal expressions with negative signs in different places.
A. - 
and - - 
B. - 
and 
C. - 
and 
D. - 
and 
Answer: D
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Solve the formula for the specified variable.a + b = s + r for s
A. s = 
B. s = 
+ b
C. s = a + b - r
D. s = r(a + b)
Solve the problem.The rate of water usage for a business, in gallons per hour, is given by 
where t is the number of hours since midnight. Find the average rate of water usage over the interval 
A. 2.63 gallons per hour B. 2.71 gallons per hour C. 2.62 gallons per hour D. 0.05 gallons per hour
Find the product.0.0048 × 9.9
A. 0.04752 B. 0.004752 C. 0.4752 D. 0.0004752
You are given the shape of the vertical ends of a trough that is completely filled with water. Find the force exerted by the water on one end of the trough. (The weight density of water is 62.4 lb/ft3.)
What will be an ideal response?