The number of words Tallulah can text in 12 minutes if she texted 65 words in 10 minutes is 78 words.
How many words could she text in 12 minutes?
65 words in 10 minutes
x words in 12 minutes
So,
65 : 10 = x : 12
65/10 = x/12
cross product
65 × 12 = 10 × x
780 = 10x
Divide both sides by 10
x = 78/10
x = 78 words
Hence, Tallulah can text 78 words in 12 minutes