Help with math questions please?

Question

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Answer 1

4)

A manufacturer is using a cubic box with edges of 8.23 cm.

Find the volume of the box.

Cubic volume is

Option 2 is correct choice.

5)

The measure of a square wall is 9 ft 7 in.

Find the square feet a painter.

Hence, 9 ft 7 in rounds to 10 ft.

10 x 10 = 100 sq ft.

Option 3 is right choice.

6)

Consider the shape of a right triangle.

The two legs measure

Find the meters of fencing you will need for the longest side.

Pythagorean theorem,

Option 3 is right answer.