Joe and kim washed 27 cars in 6 hours. the next day, they had more and washed twice as many cars in the same amount of time. what was their average car-washing rate on the second day?
a. 4.5 cars per hour
b. 5 cars per hour
c. 6.2 cars per hour
d. 9 cars per hour

An equation representing lyle’s hedge-trimming business is a = 12n - 300 where a is the amount of profit or loss in dollars and n is the number of hedges trimmed. how would the graph of lyle’s business change if the equation a = 10n - 300 represented his business? the graph would be flatter. the graph would be steeper. the graph would start closer to the origin. the graph would start lower on the y-axis.

At the movie theatre, child admission is $5.20 and adult admission is $9.70. on sunday three time as many adult tickets as child tickets were sold, for a total sales of $788.90. how many child tickets were sold that day?

Will positive numbers always have a higher absolute value than negative numbers?