If m ∠ABC = 80° what is m∠DBC? Justify your reasoning. Options:

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% O

D) Using the subtraction property of equality, 80 + 20 = 60. so m∠DBC = 60​

Customers are used to evaluate preliminary product designs. in the past, 93% of highly successful products received good reviews, 51% of moderately successful products received good reviews, and 14% of poor products received good reviews. in addition, 40% of products have been highly successful, 35% have been moderately successful and 25% have been poor products. round your answers to four decimal places (e.g. 98.) what is the probability that a product attains a good review? (b) if a new design attains a good review, what is the probability that it will be a highly successful product? (c) if a product does not attain a good review, what is the probability that it will be a highly successful product?