X-y=1, 3x=3y+3 use substitution to solve

Abouncy ball is dropped such that the height of its first bounce is 5.5 feet and each successive bounce is 64% of the previous bounce's height. what would be the height of the 7th bounce of the ball? round to the nearest tenth (if necessary).

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?