Answer:
Ann's mileage is better
Step-by-step explanation:
first to find tom's car mileage is 290/32.5=12.5
and to find Ann's 225/15=15
so Ann's better
SEE THE PICTURE!~,BELOW~
5.4 hr i think
2.25
Step-by-step explanation: Replace the z with the value given (-18) and then multiply that by 1.1 you can then add it to 21.3 and then do the exponent