Question

Photo of question attached. please help :)

Answer 1

Answer is C..........,.,.,,..,,.,.,

Answer 2

Answer: C) Tracy spends $7 every 4 days

Graphing the function as well as x = 4 will show that there is a difference in the y-value of 7 between x=0 and x=4, meaning she spends $7 every 4 days.