Help ASAP can somebody help

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

(05.03 mc) part a: explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2x−2 intersect are the solutions of the equation 4x = 2x−2. (4 points) part b: make tables to find the solution to 4x = 2x−2. take the integer values of x between −3 and 3. (4 points) part c: how can you solve the equation 4x = 2x−2 graphically? (2 points)

Complete the conditional statement. if a + 2 < b + 3, then a < b b < a a – b < 1 a < b + 1