Find the slope of the line that passes through each pair of points. Express as a fraction in simplest form. (–1.5, 3.5), (4.5, 6) if this helps the answer is 5 over 12 but I don't know the work

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

Kayla and alberto are selling fruit for a school fundraiser. customers can buy small boxes of grapefruit and large boxes of grapefruit. kayla sold 3 small boxes of grapefruit and 1 large box of grapefruit for a total of $65. alberto sold 1 small box of grapefruit and 1 large box of grapefruit for a total of $55. what is the cost each of one small box of grapefruit and one large box of grapefruit?