You are measuring the dimensions of the floo in your bedroom because you are planning to buy new carpet which unit of measure is the most appropriate to use in this situation?

How do i do this? i don’t understand

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

Moira has a canvas that is 8 inches by 10 inches. she wants to paint a line diagonally from the top left corner to the bottom right corner. approximately how long will the diagonal line be?