Y=-4x+15
8x-2y=-30
using a substitution method or elimination method.

Will used 20 colored tiles to make a design in art class. 5/20 of his tiles were red. what is an equivalent fraction for the red tiles?

Jacks bank statement shows an account balance of -$25.50. which describes the magnitude, of size, of the debt in dollars

The length of the line segment joining the midpoints of sides ab and bc of the parallelogram abcd is 10. find the length of diagnol ac