Please help i will mark brainliest

180, i already commented it but like i even looked it up a straight line is 180

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

i'm assuming that it's c.)   volcanoes built the mountains and earthquakes tore them down.