F(5) = 5² +4*5=25+20 = 45
g(6) = 2*6 +2 =12+2=14
f(5) + g(6)= 45 +14 =59
5

5 x 8 = 40
6 x 1 = 6
40 / 6 = 6

= 6 2/3
(hope I'm right & this helps you!)
Yes it has the same value
They are exponents so it would be 8 times (4*4) + (2*2*2*2)
The exponent is how many times u multiple itself