Joe drove 12 miles in the morning and 16 miles in the afternoon. How many miles total did he drive?

28

Step-by-step explanation:

Morning=12 miles

Afternoon=16

12+16=28

x = 25

Step-by-step explanation:

The interior angle adjacent to the 123° angle is supplementary to it.

Its measure is 180° - 123° = 57°

The sum of the measures of the interior angles of a polygon is

(n - 2)180° = (4 - 2)180° = 2(180°) = 360°

3x + 7 + 96 + 5x + 57 = 360

8x + 160 = 360

8x = 200

x = 25