Need
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4. First, let's change all of the mixed fractions into improper fractions.

3 5/6 - 1 4/5 = 23/6 - 9/5

We can't subtract yet since the denominators aren't equal, so we have to find a common multiple, which is 30.

23*5/6*5 - 9*6/5*6 = 115/30 - 54/30 = 61/30

5. For this question, it might be easier to convert the fractions into decimal.

Marty weighs 64.25 pounds, and Nathan weighs 76.5

76.5-64.25 = 12.25

Nathan weighs 12.25 more pounds.

there would be 365 different 4 digit numbers

step-by-step explanation:

i belive that it is 365 because i asked google

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: