Help sos needs to be done by tomorrow

Simplify the expression. -2/5(10+15m-20n)

Agraphic designer created a logo on eight and a half by 11 inch paper. in order to be placed on a business card, the logo needs to be one and 7/10 inches by 2 and 1/5 in. what is the scale factor of the dilation

How do the definitions, properties, and postulates you've learned about line segments, parallel lines, and angles to define the shapes of polygons