Plz brain fam, which expression represents a number that is one fourth as great as 10-2? a. (10 - 2) + 4 b. (10 - 2) x 4 c. (10 - 2) -4 d. (10 - 2) ÷ 4

Do u just plot the numbers on the graph like (1,

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

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?