During a promotional event a sporting goods store gave a free t-shirt to every 8th customer and free water bottle yo every 10th customer which customer was the first to get a free t-shirt and free water bottle

The 40th customer was the first to get a free t-shirt and free water bottle

Step-by-step explanation:

* Lets explain how to solve the problem

- A sporting goods store gave a free t-shirt to every 8th customer

- It gives  free water bottle to every 10th customer

- We need to know which customer was the first to get a free t-shirt

 and free water bottle

- The position of this person must be a number divisible by 8 and 10

∵ The first number divisible by 8 and 10 is 40

∴ The customer is the 40th

* Lets check that by this way:

- List the 8th positions and the 10th positions to find the common

 position in the two conditions

# 8th , 16th , 24th , 32nd , 40th , 48th ,

# 10th , 20th , 30th , 40th , 50th ,

∴ The 40th customer was the first to get a free t-shirt and free water bottle

The 40th customer was the first to get a free t-shirt and free water bottle

Step-by-step explanation:

please

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation: