Which expression is the best estimate of Four-fifths times 22.01?

One-fifth times 20
Four-fifths times 20
4 × 20
5 × 20
Please awnserill give brainliest

Prove that the sum of two consecutive exponents of the number 5 is divisible by 30.if two consecutive exponents are 5n and 5n + 1, then their sum can be written as 30.

Select the graph of the solution. click until the correct graph appears. |x| = 3

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236