Is it true or false , why and why not ?

9a is equivalent to 11a - 2a

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

On a cm grid, point p has coordinates (3,-1) and point q has coordinates (-5,6) calculate the shortest distance between p and q give your answer to 1 decimal place

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?