Answer:
0.04x^3+0.2x^2+0.5x+90 vertical shift 30 units up, increase of 30 units per month
Step-by-step explanation:
You don't need an explanation just take the answer.
Well first off if you have a negative sign in front of the seven, DO NOT have a plus sign because it will be confusing. So y-7=13? , You add 7 to 13 and = 20, so y= 20
Hopefully I’m correct but I think it is 7% because 50 -43 equals 7%