What is original price of the tennis racket if it is 30% off and the sale price is $21​

5x + 2 = 12 solve the following equation. then place the correct number in the box provided.

A(t)=728(1+0.04)^t how much money did aditya originally invest

Scenario: a rectangular plot of ground is 5 meters longer than it is wide. its area is 20,000 square meters. question: what equation will you find the dimensions? note: let w represent the width. options: w(w+5)=20,000 w^2=20,000+5 (w(w+5))/2=20,000 w+2(w+5)=20,000