Solve the equation.-7b + 8 + 5b = -3b + 13
A. 13
B. -8
C. 5
D. -13
Answer: C
Mathematics
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Solve the problem.How many different three-digit numbers can be written using digits from the set 
without any repeating digits?
A. 10 B. 120 C. 60 D. 20
Mathematics
Solve the problem.A water trough has a semicircular cross section with a radius of 0.5 m and a length of 6 m (see figure). How much work is required to pump water out of the trough when it is full? Round to two decimal places when appropriate.
A. 29,400 J B. 2450 J C. 4900 J D. 86,975? J
Mathematics
Provide an appropriate response.What does the graph of the equation 
look like?
A. A cone B. A plane C. A cylinder D. A line
Mathematics
Use the vertical line test to determine whether or not the graph is a graph of a function.
A. function B. not a function
Mathematics