Combine like terms to simplify the following expressions

2(5y-2) + x

In the football stadium, there are 18 empty seats out of 360 total seats. (1a) write the ratio of empty seats to total seats as a fraction in simplest form. (1b) then explain its meaning.

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.