500 students went on a picnic trip. 10 students travelled in each car. find out how many cars were used for the picnic trip?

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Frank owns a $141,000 home, for which he has a 30-year mortgage in the amount of $700 a month. once he has paid off mortgage, how much will he have paid in investment? a. $111,000 b. $109,000 c. $120,000 d. $141,000

20 ! brainliest ! add and simplify your answer.