Shelby mistake is 11;4 is not the correct mixed number
Let's begin by listing out the information given to us:
There are four students: n = 4
Number of students to be selected: r = 2
To calculate the combination of 2 students to be chosen, we use:

Therefore, there 12 possible combinations from these
Answer:
no
Step-by-step explanation:
18 is not a multiple of 12
and 12 is not a multiple of 8
Answer:
0.08
Step-by-step explanation:
Answer:
solution given:
balanced: C4H6O3 + H2O −−→2 C2H4O2