C.) -1.
Explanation: 4 + -5 = -1. When you have a negative number plus a positive you subtract. Then take the highest numbers positive or negative symbol. Hope that helps.
I think 4 is 3 pages plus 1/4=3 1/4
and 6 is 5+1/3= 5 1/3
hope this helpa
20*65 = 1300
That's the price without tax.
Now to find tax:
1300*.035 = 45.5
1300+45.5 = $1345.5
$1345.5 is your total
The formula for the radius is

so the answer would be 6 inches