An object is traveling at a steady speed of 10 and one tenth km /h. how long will it take the object to travel 4 and nine tenths km ? first round to the nearest integer to find the estimated answer. then find the exact answer.

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.