At a country concert, the ratio of the number of boys to the number of girls is 2: 7 . if there are 250 more girls than boys , how many boys are at the concert?

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

What is the range? can’t seem to find it out

Which statement best explains why ben uses the width hi to create the arc at j from point k