It is! When you're doing a fraction specifically like that, the denominators cancel out. Therefore you can get rid of the 12. It just becomes 21/7, which as you know is 3.
Hope that helps :)
Answer:
try using desmos. its a graphing calculator
Step-by-step explanation:
Congruent triangle are the same shape and same size exactly
25,600 will be the bacteria population after doubling every 30 minutes for 3 hours.
