Lara chooses a number less than 20 She divides it by 2 and then adds 6
She then divides the result by 3
Her answer is 4.5

15

Step-by-step explanation:

x/2 + 6 / 3 = 4.5

x/2 + 6 = 4.5 *3

x/2 = 13.5 - 6

x = 7.5 * 2

x = 15

Hope u understnad.

Please mark as the brainliest

time is equal to distance over rate so

t = d/r

need a little bit more information for the second question.