Please help, Multiple choice

Adriver from the university of florida women’s swimming and diving team is competing in the in ncaa zone b championships

Y= a(x-3)squared-1 what is the value of a

Afamily has two cars. the first car has a fuel efficiency of 25 miles per gallon of gas and the second has a fuel efficiency of 15 miles per gallon of gas. during one particular week, the two cars went a combined total of 1025 miles, for a total gas consumption of 55 gallons. how many gallons were consumed by each of the two cars that week?