Find the value of g when 5g+15 equals 2g+21. use pencil and paper. explain how you can check the value you found for g is correct. if your check does not work, does that mean your results are incorrect? explain

Solve with work adding cheese to a mcdonalds quarter pounder increases the fat content from 21g to 30g. what is the percent of change ?

Sum is 17 and their difference is 3

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125