Answer:
She pays $240 for 8 lessons.
Step-by-step explanation:
We need to set up equivalent ratios so we can cross-multiply and solve for x, the amount Angela pays for 8 lessons. Make sure to have both the costs in the numerator, and the number of lessons in the denominator. If you mix it up, this won't work.
[tex]\frac{120}{4} = \frac{x}{8}[/tex]
Cross-multiply:
120*8 = 4x
Solve for x:
960 = 4x
960/4 = x
x = $240