The cost of fabric varies directly with the amount of fabric purchased. If 1 1/3 yards of fabric cost $10.00, how much would 4 1/2 yards cost? A)14 $
B)24 $
C)27 $
D)45 $​

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

Find the distance between (0,5) & (-4,2)

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.