Add the expressions (-4/5t + 5/3s) and (-3 - 7/5s + 2t)

Asequence is defined recursively by the formula  f(n  +  1)  =  f(n)  +  3 . the first term of the sequence is  –4. what is the next term in the sequence? –7–117

Which graph represents the parent function of y=(x+2)(x-2)

What is the result of adding the system of equations? 2x+y=4 3x-y=6