20 !
you made two deposits to your bank account this month. one deposit was $17.92, and the second deposit was $15.33. your balance at the end of the month is $72.31, and you made no withdrawals. write and evaluate an expression for your balance at the beginning of the month.
$72.31 – $17.92 – $15.33; $39.06
$72.31 + $17.92 + $15.33; $105.56
$72.31 + ($17.92 – $15.33); $74.90
$72.31 – ($17.92 – $15.33); $69.72

hey you say you're giving 20 points but the question's only worth 13 that's false !

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