Felipe's Tea Shop has caffeinated tea and decaffeinated tea. During the lunchtime rush, the tea shop served 100 teas in all, 30% of which were caffeinated. How many caffeinated teas did the tea shop serve?

8.75

how-to:

first, we need to find what we have to work with.

since i know that we have 7 (years) and 0.8 (inches), we can use these to solve and find the equation!

secondly, what you want to do, is see that we need to know how much growth out of the 0.8 inches he got in only 1 year, instead of 7 years.

let's try to divide.

7 ÷ 0.8 = 8.75

the answer is 6

hope this !

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