Find the slope and y-intercept of line x÷a+y÷b=1

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

The point a is at –2 and the point b is at 7. marissa would like to divide this line segment in a 4: 3 ratio, and she would like to use the formula x = (x2 – x1) + x1. what values should she substitute into the formula? a = a + b = x1 = x2 =

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?