What is opposite negative 7 5 over 12

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

How to find the exponential function y=ca^x, with points (1,2) and (2,1)

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0