Answer this math problem pls c: ill give brainliest

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?

What are the triple angle formulas? is it related to double angle identities?

The gdp is $1,465.2 billion. the population is 249,793,675. find the per capita gdp.