Which expressions are equivalent to 16 x 4 minus 64 check all that apply

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?

The lengths of the two sides of a right triangle are 5 inches and 8 inches what is the difference the possible lengths of the third side of the triangle