Lin’s father is paying for a $20 meal. He has a 15%-off coupon for the meal. After the discount, a 7% sales tax is applied. What does Lin’s father pay for the meal? Explain or show your reasoning.
a.) How much is the 15% coupon worth?
b.) What is the new sub-total after the discount is applied?
c.) How much is the sales tax (this is found using the sub-total)?
d.) How much is the total cost of the meal?

step-by-step explanation:

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an = 22 + (n-1) *6

110 seats

step-by-step explanation:

an=a1+(n-1)(d)

a1 = 22   this is the first item in the sequence

d =6   this is how the sequence goes up

a)   an = 22 + (n-1) *6

b) a12 = 22 + (12-1) *6

    a12 = 22+11*6

  a12 = 22 +88

  a12 = 110

the answer is "add 2y and y"

step-by-step explanation:

you need to collect the like terms first.

c

step-by-step explanation: