The red bus company charges $150 plus $72 per hour to rent a bus. the blue bus company charges $240 plus 54 per hour. for what number of hours would the companies charge the same?

b

step-by-step explanation:

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,