Find the area of the composite shapes.

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

I’m still confused on how to work the percentages

Aline is perpendicular to another line m2= (-1/m1), where m1 is the slope of the original line and m2 is the slope of the perpendicular line. which of the following equations represents the line that passes through the point (-2,1) and is perpendicular to the line below?