фермер засеял под картошку 7,5 га и получил урожай 14 т картофеля с гектара. на сколько процентов надо увеличить урожайность картофеля, чтобы сократить посевные площади на 0,5 га?

Inversely proportional relationships mean that if one of the related things is multiplied in size by a number, x, then the other related thing is divided by x 

F(x) =2.96.(1.04)ˣ, where x is the number of monthsprice at the origin, when x = 0→ f(x) = 2.96(1.04)⁰  →f(x) = 2.96(remember any number with exponent 0 gives 1).price after 1 month (x=1)  → f(x) =2.96.(1.04)¹ = 3.0784increase of cost = (3.0784-.96)/2.96 = 0.04 or 4% increase.however you could have noticed it from the formula: f(x) =2.96.(1.04)ˣ = 2.96(1+0.04)ˣ (and the 0.04 or 4% is the increase over 1.sorry for the 2nd part, i am confused with your "table" . i have to see a proper table in order to you