2. a deck of game cards each have a different
shape on them. twelve have a diamond, 8 have a
square, and 5 have a circle. what is the
probability of a sing a square or a circle?

What aspects of lines have to be diffrent

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

Askateboard ramp is in the shape of a right triangle what is the height of the ramp