Solve the system of equations.
6x – 5y = 15
x = y + 3

Suppose a ball is dropped fromca height of 6ft. it bounces back up but time it bounces, it reaches only 7/10 of its pervious height. what is the total of each height that the ball reaches after 5 bounces

Mary used 1/7 of a spool of ribbon to complete 4 projects. she used the same amount of ribbon on each project. how much ribbon did she use on each project?

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)