Let f(x) be the function defined by f(x) =a/x^2 for x ≥ 3 and x^3/3 for x<3
Find the value of a if lim x→3−
f(x) = lim
x→3+
f(x)

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?