The number 84 is decreased to 78. What is the percentage by which the number was decreased, to the nearest tenth of a percent?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Aline passes through 3,7 and 6,9 what equation represents the line

Solving algebraic equations 2m+3=11