All perfect numbers from 20 to 30

not all

There is only one perfect number between 20 to 30 which is 28.

The number 28 is a perfect number because its factors are 1, 2, 4, 7, 14 and 28.

we have the parent function given by,

1. the function is translated 5 units to the left.

so, we get,   becomes

2. the function is translated 5 units to the right.

so, we get,   becomes

3. the function is translated 5 units upwards.

so, we get,   becomes

4. the function is translated 5 units downwards.

so, we get,   becomes

5. the function is reflected across x-axis.

so, we get,   becomes

6. the function is reflected across y-axis.

so, we get,   becomes .

step-by-step explanation:

mark brainliest.

113.1

step-by-step explanation:

v=4

3πr3=4

3·π·33≈113.09734