Questions on rigid motion​

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

Simplify the following expression 48^1/2

Molly planted vegetables in 0.6 of her garden and flowers in the rest of it. she planted green beans in 0.4 of the vegetable section of the garden. how much of her garden was planted with green beans?