Which ratio is equivalent to the rate of 40 miles / 1 hr? a: 40 : 1

b: 39 : 40

c: 40 : 41

d: 1 : 40

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The floor plan of a room has a scale of 2.5 in.: 35 ft. in the drawing, the length of the room is 8 in. and the width of the room is 6 in. what is the perimeter of the actual room?

When a 757 passenger jet begins its descent to the ronald reagan national airport in washington, d.c., it is 3900 feet from the ground. its angle of descent is 6 degrees. how far must the plane fly to reach the run way? a. 37,106 ft b. 37,310.4 ft c. 23,456.6 ft d 2,492.7 ft

Find the rate of change for the situation.you run 7 miles in one hour and 21 miles in three hours.