Factor by grouping.8x2 + 6xt - 9t2
A. (2x + 3t)(4x - 3t)
B. (8x - 3t)(x + 3t)
C. (8x + 3t)(x - 3t)
D. (2x - 3t)(4x + 3t)
Answer: A
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Solve the equation for x. Write your answer as an improper fraction if necessary. -7x + 3 = 9 - 3x
A. x = 
B. x = - 
C. x = - 
D. x = - 
Add or subtract as indicated.109.64 - (-85.34)
A. 194.98 B. -24.3 C. -194.98 D. 24.3
Solve the problem.A gas company has the following rate schedule for natural gas usage in single-family residences:Monthly service charge $8.80Per therm service charge1st 25 therms$0.6686/thermOver 25 therms$0.85870/thermWhat is the charge for using 25 therms in one month?What is the charge for using 45 therms in one month?Construct a function that gives the monthly charge C for x therms of gas.
What will be an ideal response?
Multiply.(4 + x)(5x - 12)
A. 5x2 - 48x + 8 B. 5x2 + 8x - 48 C. 5x2 + 7x - 48 D. x2 + 8x + 8