Factor the quadratic expression completely.
–3x² + 172 – 20 = ?

Which of the following equations is of the parabola whose vertex is at (4, 3), axis of symmetry parallel to the y-axis and focus at (4, -3)? a.) y+3=1/24 (x+4)^2 b.)y-3=-1/24 (x-4)^2 c.)x-4=-1/24 (y-3)^2

A. what does the point (4, 122) represent? b. what is the unit rate? c. what is the cost of buying 10 tickets?

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m