Please help me! I will give brainliest! The cell phone plan from Company C costs $10 per month, plus $15 per gigabyte for data used. The plan from Company D costs $80 per month, with unlimited data.

Rule C gives the monthly cost, in dollars, of using g gigabytes of data on Company C’s plan. Rule D gives the monthly cost, in dollars, of using g gigabytes of data on Company D’s plan.

For what number g is C(g) = 130?