What is the slope of a line perpendicular to the line whose equation is 20x - 2y = 6

1. a right triangle is graphed on a coordinate plane. find the length of the hypotenuse. round your answer to the nearest tenth. 2. use the angle relationship in the figure below to solve for the value of x. assume that lines a and b are parallel and line c is a transversal.

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years