What is the rate of change for 12x-4y+5=18

The parking lot of a store has the shape shown. all angles are right angles. what is the area of the parking lot?

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

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?