Lines s and t intersect so that the measure of ∠1 is 85 °. If ∠2 is a supplement to ∠1, what is the measure of ∠2?

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

What’s the answer ? use the picture to see the problem

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor