Given that a 12.630 g milk chocolate bar contains 8.315 g of sugar, calculate the percentage of sugar present in 12.630 g of milk chocolate bar keeping in mind that the answer should have four significant figures (two decimal places).

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

6(h+1)/2=a

a=area

step-by-step explanation:

its the same thing as a square or rectangle but after multiplying two sides you need to divide it by two.