Add or subtract as indicated. Simplify if necessary.
+ 
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.Jamil always throws loose change into a pencil holder on his desk and takes it out every two weeks. This time it is all nickels and dimes. There are 4 times as many dimes as nickels, and the value of the dimes is $3.15 more than the value of the nickels. How many nickels and dimes does Jamil have?
A. 36 nickels and 9 dimes B. 8 nickels and 32 dimes C. 10 nickels and 40 dimes D. 9 nickels and 36 dimes
In the given voting system, the weights represent, in order, voters A, B, C, and so on. Determine the Banzhaf power index for each voter.[12 : 1, 3, 5, 7]
A. A has an index of 0. All others have an index of 
.
B. A and B have an index of 
. C and D have an index of 0.
C. A and B have an index of 0. C and D have an index of 
.
D. All have an index of 
.
Express the percent as a decimal.7%
A. 0.7 B. 7 C. 0.07 D. 70.0
Find the quotient.22.5 ÷ 25
A. 19 B. 9 C. 1.9 D. 0.9