50$ because 20$ is 40%, so times that by 2 which you get 20$ and 80%. Then you divide 20 by 2 then you get 10 which is 20% so you add 10 and you get 50$ which is 100%

3 0

3 years ago

Lake Victoria surface area is 26,828 square miles. Lake Superior surface area is 31,700 square miles. How much larger is the sur

alekssr [168]

4,872 square miles larger

5 0

3 years ago

Which equation shows an example of the associative property of addition?

Nat2105 [25]

The associative property states that we can regroup the terms of an expression and obtain the same result.

We have then:

$a + (b + c) = (a + b) + c$

The expression that complies with this property is given by:

$(-4 + i) + 4i = -4 + (i + 4i)$

Answer:

An equation that shows an example of the associative property of addition is:

a. (- 4 + i) + 4i = -4 + (i + 4i)

6 0

3 years ago

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Melissa had 9 stamps after she sold 4 stamps at the stamp show. How many stamps did she have before the show?

Sauron [17]

If you add 9+4 you get 13 so Melissa has 13 stamps now :)

3 0

3 years ago

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