Cameron and Cadena go out to eat for Lunch. PART A:
If their food and beverages cost $22.50 and there is a 9% meals tax. How much is the bill? Show your work
PART B:
If Cameron and Cadena add an 18% tip to the bill after tax, what does their lunch cost in total? Show your work.

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -

you can use a^2+ b^2=c^2