We don’t know because you didn’t tell us how many cookies she put in.
Answer:12
Step-by-step explanation:They are adding three box for every building so is the fifth block you do it
You can use the formula
speed=distance/time
20.88=145/x
x=145/20.88
x=6.9 hours -it will take 9 hours
Answer:
8/9
Step-by-step explanation:
divide both numerator and denominator by 3
therefore u get 8/9