Answer: C is the correct answer
Arm. The center is the yellow, in the very middle. I hope this helps.
Answer:
Chemists study matter and the chemical reactions between substances
Explanation:
a)
26C5 -> 26 choices of 5 things
b)
15C1 × 11C4
c)
11C1 × 15C4
d)
11C2 × 15C2
e)
11C4
or
15C4
