2. philip earns $11 an hour. he recorded
the number of hours he worked over a
one-month period.
philip's hours
data
week
number of
hours worked
week a
15
week b
24
week c
week d
18
22
use compatible numbers to estimate
how much philip earned during the
one-month period.

week b:24 because that's the answer to the problem

10.8109 amu

Step-by-step explanation:

The average atomic mass of boron is determined as the average of the atomic masses of both isotopes weighed by their respective abundances.

Therefore, the average atomic mass is given by:

The average atomic mass of boron isotopes is 10.8109 amu.