4. The ice rink at your local community center is ordering new skates. Which would be more useful to know. The median, mean or mode? Justify your answer

Find the area of a trapezoid with a height of 23, base 1 of 10 and base 2 of 18

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 order of operations for 2 + (3 - 9) ÷ -3 · 4 in number order 1. subtraction 2. division 3. addition 4. multiplication