A parallelogram is made within the shape below by connecting the midpoints of the quadrilateral. Find the lengths of a and b

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

The following division is being performed using multiplication by the reciprocal find the missing numbers is 5/12 divided by x/3 equals 5/12 times x/10 equals 1/x

Graph y = -|x| + 2. click on the graph until the correct one appears.