Answer:
x = 7/0.25
x =$28
Step-by-step explanation:
y=0.25x
but y= $7(amount spent)
put 7
purple graph is for x+y>3
black graph is for x+y<-4
I recommend u use desmos. it'll really help
hope u have a nice day :)
Answer: here's the answers to the problems
6) 17
8) 2.5