Question

K(t)=13t−2 when t = 3

Answer 1

K(3) = 13(3) -2.
3k = 39 -2
Add 2 both sides
5k = 39
Divide 5 from both sides
And you should get 7.8

I’m sorry if I did my math wrong

Answer 2

K(3)=13t(substitute the 3 for t)-2

K(3)=13*3-2(now multiply)

K(3)= 39-2(now divide)

K= 13-2
K=11