Ihave a past due balance of 87.50 and my new charges are 75.00 and charged a late fee of 15%

Acable company wants to provide cell phone service for residents on an island. the function for the cost of laying the cable from the island to the mainland is c(x)= 6.500 square root x2+4, where x represents the length of the cable in feet. what are the domain and range of the function? a) domain: all real numbers range: all real numbers greater than or equal to 17,000 b) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 17,000 c) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 13,000 d) domain: all real numbers greater than or equal to 13,000 range: all real numbers greater than or equal to 0

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?