Step-by-step explanation:

B because in commutative property of addition the numbers switch but they do not change the sign nor the numbers. hope this helped
Answer:
30 feet
Step-by-step explanation:
Hello!
Half an hour is 30 minutes, so that means we are asked to find h(30).
Solve for h(30):
- h(30) = 150 - 4(30)
Substitute 30 for t - h(30) = 150 - 120
Simplify - h(30) = 30
The person would be 30 feet above the ground in half an hour.
Answer:She will count the cookies by 2's
Step-by-step explanation:
The volume of a cone whose radius is 3 1 / 2 cm and vertical height is 24 cm is 307.72 cm³
<h3>Volume of a cone</h3>
The volume of a cone can be represented as follows:
volume = 1 / 3 πr²h
where
Therefore,
r = 3 1 / 2 cm = 7 / 2 cm
h = 24 cm
Hence,
volume = 1 / 3 × π × (7 / 2 )² × 24
volume of a cone = 1 / 3 × π × 49 / 4 × 24
volume of the cone = 1 / 3 × π × 1176 / 4
volume of the cone = 1176 / 12 π
volume of the cone = 98π
volume of the cone = 307.72 cm³
learn more on volume here: brainly.com/question/20380818
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