Mathematics, 08.10.2019 14:00 jsnsnsns

Ineed some on some math problems . i answered some of them so could you tell me if they are right and if not, how do i solve them to get them right? also, the ones that i haven't answered or that are incomplete, explain to me how to solve them

1. what number is 18% of 95?
my 18x95=1710
1710/100= 17.1

2. solve the percent equation for b.
not sure about that one ^

3. 132 is 12% of what number?
not completely sure on how to do that one either.

4. length of movie projected at 24 frames per second: i=24f. solve for f
i think it might be:
i=24f
f/i=24
ixf/i=24xi
f=24i

Answers: 2

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Ineed some on some math problems . i answered some of them so could you tell me if they are right a...

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