Help me with this please :) (btw please don’t answer the question if you don’t know this is showing that you just answer it for points. if you do so, you will get reported )

Which speed is the fastest (use 1 mile ≈ 1.6 kilometers)? a. 12 miles/hour b. 18 feet/second c. 19 kilometers/hour d. cannot be determined

Select the correct answer from each drop-down menu. the length of a rectangle is 5 inches more than its width. the area of the rectangle is 50 square inches. the quadratic equation that represents this situation is the length of the rectangle is inches.

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?