Answer:
20 x 1 / 18= 1.11
Step-by-step explanation:
The answer is 10. I hope that this helped ☻
Answer: Third option is correct.
Step-by-step explanation:
Since we have given that
There is a cyclic quadrilateral.
As we know that "Sum of opposite angles in a cyclic quadrilateral is supplementary.":
so, it becomes,

Hence, the measure of ∠1 = 94°
Therefore, Third option is correct.
Answer:
the answer should be 12 or 3/4
Group 17. They combine with alkali metals and form salt, the are reactive, they have 7 electrons in their outer energy level