9. Which of the following is a mental benefit of exercise
Find and compare the unit rates of decline:
Run "a":
-60 yds
------------- = -0.171 yds per yd
350 yds
Run b
115 yds
------------- = -0.290 yds per yd
550 yds
Slope (b) is the steeper.
I believe the family budget to make a one- way trip will be $140 because each gallon is $3.50. You need 20 gallons to get there which is $70. You need 20 gallons to get back which is another $70. You add both and is $140. Hope this helped.