Question

Can someone please help

Answer 1

hope it will help you!

I don't really sure isn't it correct.

Answer 2

They cost 730 all together.

Explanation:

One the surface area of the hall is 310m^2.

so, 310 divided by 25 is 12.4, which means they need 13 tin of paint.

The cost for it is 13*10 which is 130.

For the area of the floor, it is 40*15, which is 600m^2.

Which costs 600.

So, 600+130=730.