Mary has 6 shells. her friend tina has 3 times more than mary. how many shells do the girls have together?

24

Step-by-step explanation:

6 time 3 equal 18 and then you need to add 6 to 18 and you will get 24.

n

step-by-step explanation:

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers