Richard and Tom each mow lawns in the summer to earn money. The lawns they mow are all approximately the same size. Richard’s earnings are shown in the graph and Tom’s earnings are shown in the table. Tom’s Earnings

Number of Lawns Earnings
3 $22.50
8 $60
12 $90
15 $112.50

How much money, in dollars, does each person earn per lawn mowed?

Richard earns $___per lawn.

Tom earns $___per lawn.

Are carpet coast $15 per square metre. the total delivery charge is $21 peter buys n squared metres of carpet what is the expression which represents the total cost in $

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

Paul’s car is 18 feet long. he is making a model of his car that is 1/6 the actual size. what is the length of the model?