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The 5% sales tax on $87.50 is $4.35, and the total amount is $91.85.

Step-by-step explanation:

To find the 5% sales tax on $87.50, multiply $87.50 by 0.05, obtaining

$4.35.  The total amount due, including this tax, is then $87.50 + $4.35, or $91.85.

The other problems are done in precisely the same way.

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1

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step-by-step explanation: