Find the measures of the numbered angles

Need on this one asap im almost done with this subject

Which is the correct first step in finding the area of the base of a cylinder with a volume of 26x cubic meters and a height of 6.5 meters? v=bh 6.5=b(26x) v=bh v=26pi+(6.5) v=bh v=26pi(6.5) v=bh 26pi=b(6.5)

Aline has a slope of negative 1/4 the past two points -5/4 and 1 what is the equation of the line