Use the formula for the perimeter of a rectangle, P = 2l + 2w.The perimeter of a rectangle is 32 centimeters. If the width is 7 centimeters, find the length.
A. 18 centimeters
B. 8 centimeters
C. 10 centimeters
D. 9 centimeters
Answer: D
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Write an equivalent sentence for the statement.An number n is divisible by 3 if and only if the sum of the digits of n is divisible by 3. (Hint: Use the fact that 
is equivalent to 
A. If a number n is divisible by 3 then the sum of the digits of n is divisible by 3, or if the sum of the digits of n is divisible by 3 then the number n is divisible by 3. B. The sum of the digits of n is divisible by 3 or the number n is divisible by 3. C. A number n is divisible by 3 and the sum of the digits of n is divisible by 3. D. If a number n is divisible by 3 then the sum of the digits of n is divisible by 3, and if the sum of the digits of n is divisible by 3 then the number n is divisible by 3.
Write the improper fraction as a mixed number.
A. 13
B. 
C. 148
D. 148
Evaluate the determinant.
A. 17 B. 379 C. -79 D. -17
Solve.10y = 6y + 5 + 3y
A. -50 B. 5 C. 50 D. -5