Answer:
x=7
Step-by-step explanation:
8x +3 = 59
8x= 56
/8
x = 7
A) f(n) = 12 + 2(n-1)
Arithmetic Sequence Formula:
a(n) = a(1) + (n-1)d
d = 2
a(1) = 12
a(n) = 12 + 2(n-1)
