Solve the variation problem.The amount of water used to take a shower is directly proportional to the amount of time that the shower is in use. A shower lasting 21 minutes requires 16.8 gallons of water. Find the amount of water used in a shower lasting 7 minutes.
A. 6.4 gallons
B. 147 gallons
C. 5.6 gallons
D. 4.8 gallons
Answer: C
Mathematics
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Perform the operation.3.67(1.97 + 59.6 - 5.54)
A. 246.2937 B. 654.13248 C. 61.2899 D. 205.6301
Mathematics
Provide an appropriate response.Solve for x: 7x-3 = 75
A. x = -2 B. x = 8 C. x = 16,810 D. x = 2
Mathematics
Solve the equation by completing the square.4x2 - 4x - 8 = 0
A. 
B. 
C. 
D. 
Mathematics
Multiply and simplify.
A. 
B. 
C. 
D. 
Mathematics