Pls help i need now

Simplify and solve the equation: 2x - 3 + 4x = 27

Regular price 75$ discount 25%sale price?

What is the slope of the line that contains the points (-2,1) and (0,-3)

Olive's solar powered scooter travels at a rate of 30 miles per hour. what equation can she use to calculate her distance with relation to the time she traveled? h=hours m=miles 1. h=m+30 2. m=30h 3. m=h+30 4. h=30m