What's the slope of (0,5) and (4,2)

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)

Paco orders an ice cream for $1, but realizes his wallet is at home and he only has 3/20 of $1 with him. if his mom pays the remaining 7/20 of the dollar, how much will she pay? $0.05 $0.15 $0.85 $0.95

Factor these polynomials and explain how 1. 12x - 3x^2 2. 20 - 240x^2