isosceles trapezoid ABCD has legs AB and CD and base BC. if AB = 3y-4,BC=4y-7 and CD=4y-19, find the value of y and the length of BC

Use the numbers in the multiplication equation 45 x 1/9 =5 to write a division equation involving division by a fraction.

Which statement most accurately describe why the division property of exponents does not apply to the expression (-8)^2/(-3)^4

Scarlet bought three pairs of sunglasses and two shirts for $81 and paula bought one pair of sunglasses and five shirts for $105 what is the cost of one pair of sunglasses and one shirt?