Ming needs to play for 15 hours to get 500 points. They gave him 200 for signing up, so 500-200=300 more points needed. 300 divided by 20= 15 more hours.
Answer:
230,300 different selections.
Step-by-step explanation:
If the order does not matter, the number of possible different selections is determined as the combination of choosing four numbers out of 50:

There are 230,300 possible different selections.
The prime factorization of 16 is 2⋅2⋅2⋅2.
The factors of 16 are all numbers between -16 and 16 that divide 16 evenly.−16,−8,−4,−2,−1,1,2,4,8,16
Answer:
b
Step-by-step explanation:
x=2