Solution
For this case Larry had 32 pieces
And we know that Melissa has twice as Larry so then she has 32*2 = 64 pieces
Then the total of pieces are:
32+64 = 96
For the second part of the question we can do the following:
63 = 48 + 0.15*x
x= number of text messages
So then solving for x we have:
63-48 = 0.15 x
15 = 0.15 x
x= 100
