An adult takes 800 mg of ibuprofen. Each hour, the amount of ibuprofen in the person's system decreases by
about 20% How much ibuprofen is left after 6 hours? (Round to the nearest whole number)

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

Right triangle xyz has a right angle at vertex y and a hypotenuse that measures 24 cm. angle zxy measures 70º. what is the length of line segment xy? round to the nearest tenth. 8.2 cm 8.7 cm 22.6 m 25.5 cm

Which of the following lines would not have its equation change after a dilation with a center at the origin? (1) y=x+3 (2) y=10 (3) y=4x (4) x=6