Answer: 1,4 is the answer
Answer:
15
Step-by-step explanation: simple math
e
Step-by-step explanation:
f(n)=20(5)n-1
let n =6
f(6) = 20 (5) (6-1)
f(6) = 20 *5*5
f(6) = 20 * 25
f(6) = 500