<span>When order does not matter you use what is called n choose k formula
n!/(k!(n-k)!) where n is the number of things to choose from and k is the number of choices made, in this case:
20!/(4!(20-4)!)=4845</span>
To find out how much he makes per week, take the amount and divide it by the week.
1520/4=380.
He makes 380 per week.
Answer:
First one is x(7-4)
Second one is x(3)
Third one is 3x
Step-by-step explanation: Plz mark brainliest
the answer is a becuse you tacke that little dot and you slid it to the left tow times
That is really hard to see
