3 groups of 10 than 1 group of 8
So if it’s 7 years, it would be 50.75%.
20,700-50.75%= 10194.75
That’s just a little below 10800.
6 years would be 43.5%
20,700-43.5%= 11695.5
10194.75 is closer to 10800 than 11695.5. Therefore the nearest year is 7
The hypotenuse is approximately 6.2
F(-3)=121=112-k(-3)
121=112+3k
minus 112 both sides
9=3k
divide by 3
k=3