Mari has a part time job. she earns $7 an hour. she makes at most $143.50 a week. what is the greatest number of hours she can work

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Mario is constructing a frame for 10 in. by 8 in. photo. he wants the frame to be the same with all the way around in the same area of the frame and photo to be 120 square inches what is the dimension of the frame?

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.