Find the slope and y-intercept of the line. y=7/4x-10

Quick translate "x is 12 units from 20" into an equation. what are the values of x being described? if you can answer any of my other questions that'd be great too

Each cookie sells for $0.50 sam spent $90 on baking supplies and each cookie cost $0.25 to make how many cookies does sam need to sell before making a profit formula: sales> cost

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)