50 have been eaten and 150 have not been eaten.
I belive the answer would be B if not im sorry
40g+300 is less than or equal to 5000
g is less than or equal to 117.5
So that is 117 guests max can be invited
I think it might be 7 don't know what answers you may have but its a guess

<em>Golden ratio, also known as the golden section, golden mean, or divine proportion, in mathematics, the irrational number (1 + Square root of√5)/2, often denoted by the Greek letter ϕ or τ, which is approximately equal to 1.618.</em>