Derek is planning his day at Hershey Park. If he is going to ride all 4 of their 2 points
best roller coasters, in how many different orders can he ride them?
4
12
24
48

im just earning some points u can delete this if u want to

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72