Find the area of the polygon with vertices P (-5, 4), Q (2,4) and S (1,-1) Round to the nearest hundredth plz ASAP!!

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.)

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15