In a recent air quality study, there were 64 unhealthy air quality days in city a. this is 4 more than twice the number of unhealthy air quality days in city b. how many unhealthy air quality days were there in city b?

The answer to your question is: 30 days

Step-by-step explanation:

City A has 64 unhealthy air quality days this is 4 more than twice the number of unhealthy air quality days in City B.

# unhealthy days in city A = 64

# unhealthy days in city B = B

Equation

                          64 = 2B + 4

                          64 -4 = 2B

                          60 = 2B

                          B = 30 days

2

step-by-step explanation:

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°