HELP PLS ILL GIVE BRAINLIEST ANSWER HELP ASAP!! what are the lengths of PQ and QR? imput the lengths

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?

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

Marquise has 200 meters of fencing to build a rectangular garden. the garden's area (in square meters) as a function of the garden's width w w (in meters) is modeled by: a ( w ) = − w 2 + 1 0 0 w a(w)=−w 2 +100w what side width will produce the maximum garden area? meters