Math
posted by Louis .
1 litre can of paint covers 11m squared. How many cans of paint would you need to cover a perfectly square ceiling that has a side length of 5.2 m?
If paint caosts $29.95 per can and there is a 12% tax. How much would it cost to paint the ceiling?

Hold it! im going to try this myself but i want someone to check if i did it right:
5.2 x 5.2 = 27.04
11 x 3= 33
You would need 3 cans of paint.
27.04 x 3 = 81.12
ok now im stuck... how do you do this part::If paint caosts $29.95 per can and there is a 12% tax. How much would it cost to paint the ceiling? 
5.2 * 5.2 = 27.04 square meters
27.04 / 11 = 2.46 = 3 cans of paint
(3 * 29.95) * 1.12 = ? 
OOPS oh so is this how you do it:: 29.95 x 3= 89.85x 1.12 = $100.632
i just have one question: where did the 1.12 come from? 
1.12 = 112%

Nope it would be 1.12=12%
if you are going to follow this way
29.95 x 0.12=3.594
so look here 29.95 + 3.594=33.544
29.95 x 1.12 =33.544
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