Simplify: 5x + 2y minus 3x + y.
a. 5xy
b. 2x + 3y
c. -30xy
d. -2x + 2y2

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?