What is the sum of 5 times a number and - 9 , added to 9 times a number? (I have a processing disorder and these really mess up my brain, any advice on how to understand mathematic talk is welcome!)

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

Having a hard time understanding this question (see attachment).

The trapezoid is composed of a rectangle and two triangles. what is the area of the rectangle? what is the total area of the triangles? what is the area of the trapezoid? a) 48 cm2; 32 cm2; 80 cm 2 b) 48 cm2; 16 cm2; 64 cm 2 c) 128 cm2; 32 cm2; 160 cm 2 d) 128 cm2; 16 cm2; 144 cm 2