4. Solve each equation for x. a. 3x - 12y = 27
c. 4x - k= 17
b. 6x - 7y= -2
d. kx + c = 9

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

How to do this , and can some one explain

Add the fractions and simplify 1/2+ 1/3