A calbe complany charges $70 per month for cable service to existing customers. For new customers, there is an additional one-time $100 service fee. Repeat the previous problem for new customers.
l
l
V
A calbe complany charges $70 per month for cable service to existing customers. Find a linear equation representing the relationship between x, the number of months of service, and y, the total amount paid in dollars by an existing customer.