(^3-8\x-2) what type of maths question is this

John bought 5 lemons and used 2 of them for a salad how much did he use for. a salad . he used % of the lemons.

Are triangles the congruent? write the congruency statement. what is the congruency that proves they are congruent? what is the perimeter of ∆pqr?

In order for the function to be linear, what must m be and why? m = 22 because the rate of change is 1. m = 20 because the rate of change is 3. m = 22 because the rate of change is -1. m = 20 because the rate of change is -3.