If line q has a slope of -2 what is the slope of any line perpendicular to q

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

The figure below shows rectangle abcd and the triangle eca on a coordinate plane. which of the following expressions represents the perimeter of triangle of triangle eca in units

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.