A car travels 54 km in 45 minutes. Express its speed in meters/sec

Write 5 numbers that round to 740 when rounded to the nearest 10

Solve with work adding cheese to a mcdonalds quarter pounder increases the fat content from 21g to 30g. what is the percent of change ?

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?