Angle qrs has a measure of 180

Find the equation of a line whose slope is 2/5 and y- intercept is 2.write your answer in the form 1) ax+by+c=02) x/a+y/b=1

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

X+y=-4 x-y=2 use elimination with adding and subtraction