3 math questions I doubt you can answer.

Lois got 27 problems right on a math test. If this is 90% of the test, how many problems were on the test??
Write 17/20 as a decimal and a percent.
9 is what percent of 72?

Answer #1

1 is 0.85 and #2 is 30

3 is 12.5%

the way you get #3 is by a porportion you put a 9 like a fraction and x under the nine then you do another porportion right next to is 72 out of 100 you cross multipy nine times a hundred equals nine hundred then you divide the product 9 and 100 to 72 and then youll get your answer for x get it (:
FUNADVICE EDUCATION
Answer #2
1. 30 Questions
2. .85, 85%
3. 12.5%
I am in advanced math in my private school
Answer #3

you divide 9 by 72 and it give you .125 which it 12.5% in percentage
Answer #4

how did you guyss gett # 3 kuz everyone has different answerss
Answer #5

imma just guess... #1= 30 lol.. thats all I can do
Answer #6
1. 30 questions 2.0.85 and 85%
2. 12.5% I think
Answer #7
1. 30 questions
2. 85%
3. 12.5%
Answer #8
1. 30
2. 0.85 and 85%
3. 12.5%
Answer #9

0.85 and 85% for #2?
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1 is 0.85 and #2 is 30