Astudent is running a 10-kilometer race. he runs 1 kilometer every 4 minutes. select the function that describes his distance from the finish line after x minutes.
(1 point)

select one:
a. f(x) = 1 over 4x + 4
b. f(x) = −1 over 10x + 4
c. f(x) = 1 over 10x + 10
d. f(x) = −1 over 4x + 10

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

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11

Find the zeros of each function. f(x) = 6x^2 - 7x - 20