Answer:
Step-by-step explanation:
Number of shells she had in the begining = 40
Number of shells collected in the morning and at noon = 6 + 3 = 9
Now the number of shell at the end = 40 + 9 = 49
Icreased shells = 49 - 40 = 90


17) -3 + x > 19
x > 19 +3
x > 22
18) -3 <_ 6x - 1
(Here, please note that <_ is lesser than or equal to and >_ is greater than or equal to)
6x >_ -2
x >_ -1/3
19, 20, 21) now onward Ima type just the answers -_-
x > -7/2
x < 12
x<_ 2
It could be twenty two times forty feet is equal to 2500 cubic feet since it is volume