The soccer club is selling t-shirts and washing cars to raise money for a summer trip. last week, the club raised $292.50 by selling 15 t-shirts and washing 12 cars. this week, it raised $747.50 by selling 45 t-shirts and washing 10 cars.
(a) write two equations showing the money the club raised each week, where x is the amount earned per t-shirt sold and y is the amount earned per car washed.
(b) how much does the soccer club charge for a t-shirt? show your work.
(c) how much does the soccer club charge for a car wash? show your work.

if you're trying to figure out how much each ounce cost it would be 0.20

cents each ounce

answer:

given the linear inequality :

add 2y to both sides we get;

simplify:

add 12 to both sides of an equation;

simplify:

divide both sides by 2 we get;

or

the related equation for the inequality equation [1] is;

y-intercepts defined as the graph crosses the y-axis.

substitute x =0 in [2] to solve for y;

y = 6

x-intercepts defined as the graph crosses the x-axis.

substitute value y = 0 to solve for x;

subtract 6 from both sides we get

multiply both sides by 2 we get;

or

x = -12

now, plot these point (0, 6) and (-12, 0) on graph as shown below and shade the graph below the solid line.