Please help
4x-8 by 4 is ???

What is the nth term rule of the linear sequence below? 27 , 25 , 23 , 21 , 19 , . .

Find the distance between the point (-3,-4), and (see the picture below)

An isosceles trapezoid with a perimeter of 42 inches. each of the congruent non parallel sides is 5 inches long, and the trapezoid is 3 inches tall. how long are the two parallel sides? a. 10 in, 22 in b. 16 in, 16 in c. 10 in, 16 in d. 12 in, 20 in