Find the least common denominator for these two rational expressions. x/x^2-4 5x/x^2-7x+10

Identify whether the figure has plane symmetry, symmetry about an axis, or neither.

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?

Askyscraper is 396 meters tall. at a certain time of day, it casts a shadow that is 332 meters long.at what angle is the sun above the horizon at that time?