Given a cone-shaped sand pile which has a diameter of 15m and a height of 7m, determine the time (round to the nearest minute) it will take to form eight sand piles
if the sand flows out of the truck at a rate of 60mº/min. Use three lines of
work where the fourth is the final answer.

Explain how you do each step what term makes it inconsistent y=2x - 4 ?

What is the product? a-3/15a × 5/a-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