The first question is (7)
Not readable for me to be able to answer.
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
If you reverse the first two letters
Na
Fe
Hg
Sn
They are actually symbols for elements
Na - Sodium
Fe - Iron
Hg - Mercury
Sn - Tin
Since Sn is a symbol for Tin and each pair of letters imply the starting letter of the element they are symbolizing, the answer is
1) T<span />
