Shen's phone service costs her $20.75 per month. If she averages $8.25 per month for long-distance calls, what is her annual expense for
telephone?

Best answer will get brainliest :)

What are the excluded values? m+5/mn+3m

The legs of a right triangle measure 6 meters and 8 meters. what is the length of the hypotonuse.

He 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) 42 cm2; 27 cm2; 69 cm 2 b) 54 cm2; 27 cm2; 81 cm 2 c) 108 cm2; 27 cm2; 135 cm 2 d) 108 cm2; 13.5 cm2; 121.5 cm 2