2k + 5k - 3
What is 7k - 3 ?
m + 4 = 12
What is 8 ?
2k + 5 = 17
What is 6?
2(a + 11)
What is 2a + 22 ?
The formula A = LR gives the relationship among the number of linear feet L of roof vents, the rating R of the vents, and the area A of net-free vent area (NFVA) in the attic. If a certain ridge vent has a rating of 8.0 sq in. of NFVA per linear foot, and an attic has 400 sq in. of NFVA, how many linear feet of ridge vents are needed?
What is 50 feet ?
3y = 30
What is 10 ?
2r + 10 - 12r + 5
What is -10r + 15 ?
A repair service charges $45 for a house call and an additional $60 per hour of work. The formula T = 45 + 60H represents the total charge T for H hours of work. If the total bill for a customer was $375, how many hours of actual labor were there?
What is 5.5 hours ?
k - 21 = 97
What is 118 ?
17 - (x + 2)
What is 15 - x ?
A student’s first four semester test scores have been 84, 89, 92, and 85. What score must the student receive on the fifth test in order to achieve an average score of 80?
What is 75% ?
g/11 = 12
What is 132 ?
12s + 27 = 171
What is 12 ?
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Who is Ms. Paul?
19b - 4(2b - 11)
What is 11b + 44 ?
-w = 54
What is -54 ?
w/317 + 596 = 1,639
What is 330,631 ?