Answer:
16. 4 6/8 or 4 3/4
17. 3 chairs
18. 320 cars
19. 10 students
Step-by-step explanation:
15. Not enough Information. I need to know how many pencils she had in all
Answer:
(2,-1) and 5
Step-by-step explanation:
Answer: Total amount for an item would be 85.6x.
Step-by-step explanation:
Since we have given that
Rate of discount = 205
Rate of sales tax = 7%
Function f(x) is used to determine the price of an item after the 20% member discount is given by
![f(x)=0.8x](https://tex.z-dn.net/?f=f%28x%29%3D0.8x)
Function g(x) is used to determine the total amount customers pay for a purchase after all discounts are applied which is given by
![g(x)=107x](https://tex.z-dn.net/?f=g%28x%29%3D107x)
we will use composite function gof(x) to find the total amount a member pays for an item with a regular price of x dollars.
![T(x)=g(f(x))=g(0.8x)=107\times 0.8x=85.6x](https://tex.z-dn.net/?f=T%28x%29%3Dg%28f%28x%29%29%3Dg%280.8x%29%3D107%5Ctimes%200.8x%3D85.6x)
Hence, total amount for an item would be 85.6x.