So I was doing this question and while doing it I came on the the equation:

what I wanted to know is that will the minus at the position of (a) will be moved to 6 or it will just stay there?

0.0076, if you meant 4.125 divided by 0.03125 it would be 132

step-by-step explanation:

first you have to move the decimal in 0.03125 over until its behind the 5 which is 5 places over. now the number is 3125

then you have to move the decimal in 4.125, 5 places over. now the number is 4,112,500.

now you divide like you would normally would and get 0.0076

d. 145*2 is 290 than the total angle is 360 then minus 290 then divide by two