The cost for 3 basketball lessons is $57.00. Which of the following equations correctly states the relationship between the number of lessons, n, to the cost of the lessons, C?
n=57 C
n=19 C
C=57 n
C=19 n

Which shows the correct substitution of the values a, b and c from the equation 1=-2x+3x^2+1

Mario has $14.35 left in his wallet. he spent $148.43 for tablecloths. then, he spent $92.05 for napkins. how much money did mario have in his wallet to start with?

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?