Answer:
n = 298
318 - 6% = 298
h(x)= -kx + 14
18 = -k*2 + 14 since x=2
18 = -2k +14
subtract 14 from each side
4 = -2k
divide by -2
-2 =k
-11-(-5)= -6
25-(-3)= 28
-7-(-2)= -5
4-15= -11
6-(-9)= 15