Ray drove her car for 2 1/4 h and traveled 217.35 km. If she drives her car at the same speed for 3 hours, how many km will Ray travel?

289.8

Step-by-step explanation:

First, find her speed by dividing 217.35 by 2.25:

217.35/2.25

= 96.6

This means Ray's speed is 96.6 km per hour.

Find how many km Ray will travel in 3 hours, by multiplying 96.6 by 3:

96.6(3)

= 289.8

So, Ray will travel 289.8 km in 3 hours.

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)