I WILL GIVE YOU THE BRAINIEST IF YOU ANSWER THIS RIGHT Determine whether y=2r-3 is a linear equation. If so. write the equation in standard form.

Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years