PLEASE HELP ASAP!!!

Question

(Problem of the month growing staircases or stepping up)

1. How many blocks are needed to make just the one-hundredth step? Explain how you know.
2. Write a rule to find the number of blocks needed for the nth step. Explain the rule
3. Write a rule to find the total number of blocks needed to make a staircase with n number of steps. Explain your rule
4. Write a rule that given y number of blocks you can tell how many steps are in the staircase. Explain your rule.

SOMEONE, PLEASE HELP ASAP ( Sorry there is no picture of the staircase, well no option for an attachment)

but if this helps imagery-wise... There are six total blocks, one-step block, two-step blocks, and three-step blocks.

Answer 1

To make step #100; if you're on #99; you need one more.

nth=previous+1

starecase=height/10"

(length-landing)/10" (unless you have to experiment for a proper size).

=amount of steps

See #3