What is the value of y that solves the following system of equation?

What is the solution set of the quadratic inequality x^2-5< or equal to 0

The track team ran a mile and a quarter during their practice how many kilometers did her team runs?

Will mark ! (10 points also! ) if x varies inversely with y and x =6 when equals y= 10, find y when x=8 a. y=4.8 b. y=7.5 c. y=40/3 d. y=4/15