The weekly fee for staying at the Pleasant Lake Campground is $20 per vehicle and $10 per person. Last year, weekly fees were paid for v vehicles and p persons. Which of the following expressions gives the total amount, in dollars, collected for weekly fees last year?
A. 20v + 10p
B. 20p + 10v
C. 10(v + p)
D. 30(v + p)
E. 10(v + p) + 20p
If r = 9, b = 5, and g = −6, what does (r + b − g)(b + g) equal?
A copy machine makes 60 copies per minute. A second copy machine makes 80 copies per minute. The second machine starts making copies 2 minutes after the first machine starts. Both machines stop making copies 8 minutes after the first machine started. Together, the 2 machines made how many copies?
Marlon is bowling in a tournament and has the highest average after 5 games, with scores of 210, 225, 254, 231, and 280. In order to maintain this exact average, what must be Marlon’s score for his 6th game?
Questão 6Which of the following mathematical expressions is equivalent to the verbal expression “A number, x, squared is 39 more than the product of 10 and x ”?
F.   2x = 39 + 10x
G.   2x = 39x + 10x
H.   x2= 39 − 10x
J.   x2 = 39 + x10
K.   x2 = 39 + 10x
Discount tickets to a basketball tournament sell for $4.00 each. Enrico spent $60.00 on discount tickets, $37.50 less than if he had bought the tickets at the regular price. What was the regular ticket price?