Nick and his cousin sarah have the same birthday but nick is 4 years older than cigarettes the variables that represents next age and y represents ears age which graph represents the relationship between nick and age and sarah's age

The price of a box of 15 cloud markers is $12.70. the price of a box of 42 cloud markers is $31.60. all prices are without tax, and the price of the packaging is the same for any size. how much would 50 cloud markers in a box cost? write an equation which will tell the price p for the number n markers in the box.