6.320330428085530285686809582719659 695278 divided by 2 me my teacher said no calculators

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

How do i put 3(x+7) in distributive property

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?