Answer:
84 CDs last week and 26 CDs this week
Step-by-step explanation:
add 17.50 to 8.75 you get 26.25
18/5
5 1/5 = 1 thus 3 are 15 + 3 = 18/5
x = 0, 7
Step 1: Write out equation
x² - 7x = 0
Step 2: Factor out <em>x</em>
x(x - 7) = 0
Step 3: Find roots
x = 0
x - 7 = 0
x = 7