6-ft-tall person casts a shadow 5 ft long. A nearby tree casts a shadow 31 feet long. What is the height of the tree?

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

2.5 milligrams is equivalent to how many grams

Type the correct answer in each box, round your answers to the nearest integer 20 25 30 in the figure, the perimeter of hexagon abcdef is approximately w units, and its area is square units