There are 120 different possible groups.
(10 * 9 * 8)/(3 * 2 * 1) + 120
Answer:
Option 3 is correct that is
Answer: y=x estimate: 88
Step-by-step explanation:
Answer:
With the increase of the value of a ,the value of the expression 20+a will also increase.
Step-by-step explanation: