298 x 0.062 = the amount that is deducted 298 x 0.062 = 18.476
The total amount of money she has earned this year is given to you just to confuse you. All you really need is the percent converted to a decimal, which is 0.062, and her weekly pay, which is $298. You multiply these two together to get 18.476, which when rounded becomes $18.48.
So, every week, $18.48 is deducted from her weekly pay.
I believe we pay 6.2% social security tax and another 1.45% for medicare. So you would pay approximately 18.48 for social security tax and another 4.32 for medicare each week. Provided the 298. is your gross income.
The mass is greater by 10.502 grams. If you subtract 27.33 from 16.718, you get 10.502. Therefore, the mass of the second coin is greater than the first coin by 10.502 grams.
