Answer:
14
Step-by-step explanation:
If he is solving 2 problems per minute and 8 minutes have passed, he has solved
2*8 = 16 problems
There are 30 problems and he has solved 16
30-16 = 14
There are 14 problems left to solve at the start of the 9th minute
You can describe them by Charts and lines or if it has a single peak
Answer:
ok
Step-by-step explanation:
ty
Answer:
Alfonso didn't use a good estimation method
Step-by-step explanation: