20 is the answer your looking for
1st let's calculate r the common ratio:
r = (-20)/4 = (100/-20) = -5
Value of nth term = a₁.rⁿ⁻¹, where a₁= 1st term and n, the rank
Value of nth term = 4r⁽⁷⁻¹⁾ = 4.(-5)⁶
Value of nth term = 62,500
13.435
Use a calculator if you need
Answer: Who doesn't?
Step-by-step explanation:
Dont look at this Answer bc i just need points but it looks like its going to be 78