At a store, notebooks are on sale for 78% off the regular price. The cost of a notebook is represented by n. Which of the
2 answers:
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Answer:
50 legs
Step-by-step explanation:
We know that a dog has 4 legs, a cat has 4 legs, a giraffe has 4 legs, a duck has 2 legs, and a chicken has 2 legs. So, we want to calculate , right?
Wrong! It's a trick question! The chickens aren't on the floor, so they don't count. So, we really want .
We multiply it out to get .
We add these up to get .
So, our answer is legs.
A can of paint is a cylinder, so we must use the surface area for a cylinder.
2(
r
) is the top and bottom.
The surface of the can is a rectangle with a length equal to the circumference of the can.
2(
The surface of the can is a rectangle with a length equal to the circumference of the can.