HELP PLEASE A popular scale for model trains has a ratio of 3 inch to 20 feet. If a toy train is 4.5 inches long, how long is the real train?

A. 60 ft

B. 24.5 ft

C. 90 ft

D. 30 ft

In the pendulum formula t=2pi. read the problem on the picture ! ; $; $; ! ; ! ; ! ; )$; ! ; ! ; ! ; $; $; $! ; ! ; ); $; $$

In exponential growth functions, the base of the exponent must be greater than 1,how would the function change if the base of the exponent were 1? how would the fiction change if the base of the exponent were between 0and 1

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !