F(x)=x-3 I think but I am not sure
$800 increased by 25% = 1.25 x 800 = $1,000
First u do a squared +b squared =c squared aka pythagorean theorem then so u already have c squared so you would do 5x5=25 and 13x13=169 so then the equation would be 25+?=169 then do 169-25 which equals 144 and then do the square root of that which is 12 THE ANSWER IS 12
I think it would be 883 if you just 60?
A circles DIAMETER is twice as long as its radius
Hope this helps you :)
