Which represents a reduction? a (x, y) —> (0.9x, 0.9y) b (x, y) —> (1.4x, 1.4y) c (x, y) —> (0.7x, 0.3y) d (x, y) —> (2.5x, 2.5y) 11 which set of lengths are not the side lengths of a right triangle? a 28, 45, 53 b 13, 84, 85 c 36, 77, 85 d 16, 61, 65

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Which of the following expressions is equal to 2x^2+8

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.