Yes. Your answer is correct
Answer:21
Step-by-step explanation:12 times three is 36 and 7 times 3 is 21
About $0.75 per person.
First, let’s find the cost for each portion of hamburger meat and the cost for each bun.
We can do this for the meat by doing 1.49/4 to get 0.3725.
Now we can do the same with the buns by doing 2.99/8 to get 0.37375.
Now just add these together. 0.3725+0.37375 is 0.74625, which can be rounded to $0.75.
The cost per person is approximately $0.75.
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Answer:
surface area we can also take it as total surface area
9 is the radius and 5cm is the height . as they asked total surface area we have to take the area of base so tht we can make it as
total surface area = csa of cylinder + area of base
we know that,
2pirh+pir²
pir(2h+r)
pir(2×5+9)
pir(10+9)
pir(19)
22/7×9×19
3762/7
=> 537.42 cm² is the answer.
