In a sample of people in the town hall, 20 of 25 favored building a new park for the town. If 4,000
people vote in the next local election, how many are
likely to vote in favor of the new park?

Justifying my reasoning, using the angle addition postulate, 20 + m∠dbc = 80. so, m∠dbc = 60° using the subtraction property of equality. So, m∠dbc = 100° using the addition property of equality.

Step-by-step explanation:

a) using the angle addition postulate, 20 + m < dbc = 80. so, m < dbc = 60° using the subtraction property of equality.

b) using the angle addition postulate, 20 + 80 = m < dbc. so, m < dbc = 100° using the addition property of equality.

c) using the addition property of equality, 20 + 80 = 100, so m < dbc = 100°.

d) using the subtraction property of equality, 80 - 20 = 60, so m < dbc = 60°