Line A and Line B are perpendicular lines.
If the slope of Line
A is 4/5, what is
the slope of Line B?

What is the value of y? round to the nearest tenth

List the sides of δrst in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?