There are 2.54 centimeters to 1 inch. how many are in 15 inches

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?

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

Solve for x and y a x= 13.3 y= 16.7 b x= 23.3 y= 12.5 c x= 7.5 y= 16.7 d x=7.5 y= 12.5