13. how many television sets
costing $280 each can be
bought for $15,680 ?
( has to show work )
someone plsss me

Solve the system of equations y= 3/2 - 1, -x+ y =-3

How many solutions does the nonlinear system of equations graphed bellow have?

If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°