Find m∠1. 40° 50° 65° 70°

50 degrees

Step-by-step explanation:

First, look at the exterior angle with the measure of 140 degrees. The corresponding interior angle has a measure of 40 degrees. Add together 90 and 40 and subtract that sum from 180

180 - (90 + 40)      Add in the parentheses

180 - 130               Subtract

50 degrees

step-by-step explanation:

twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2