Verify whether these two functions are inverses: f(x)=(x+5)/(2x+1) and g(x)=(5-x)/(2x-1)

Adam plans to choose a video game from the section of the store where everything is 75% off. he writes the expression d-0.75d to find the sale price of the game if the original price is d dollars. gena correctly writes another expression, 0.25d, that will also find the sale price of the game if the original price is d dollars. use the drop down menus to explain each part of adams and rena's expression

Ineed in figuring out this problem.

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41