8y+7= y+21
Subtract y from both side
7y+7=21
Subtract 7 from both sides
7y = 14
Divide both sides by 7
Y=2 or A
Answer:
Each is equally likely (assuming a perfect die). The probability of rolling less than 7 is equal to the probability of rolling 1 or 2 or 3 or 4 or 5 or 6. That is 1/6 + 1/6 + 1/6 + 1/6 + 1/6 + 1/6 = 6/6. Which is 1 or 100%.
Step-by-step explanation:
We have been given a circle. We are asked to find the measure of arc MN.
We know that the measure of all arcs in a circle is equal to 360 degrees. SO we can set an equation as:

Upon substituting our given values, we will get:




Therefore, measure of arc MN is 66 degrees and option 'c' is the correct choice.
Answer:
I can't see the pic
Step-by-step explanation: