Draw a figure strategy a snail is at t bottom of a 10 ft wall. each day it climbs up 3 ft. each night it slides down back 1 ft. on which day will it reach to the top of the wall

The snail will reach the top of the wall by day 5.

(3ft-1ft)x = 10ft
2x = 10
2x / 2 = 10/2
x = 5 days.

The snail will reach the top of the wall on the 5th day.

11=                                                 d5
10=                                                        d5
9=                                       d4
8=                                             d4  d5
7=                          d3
6=                                d3  d4
5=             d2
4=                  d2    d3
3=  d1
2=       d1  d2
1=
0=  d1