Which point would map onto itself after a reflection across the line y=-x? (-4,-4) (-4,0) (0,-4) (4,-4)

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x

Answer asap evaluate 4-0.25g+0.5h4−0.25g+0.5h when g=10g=10 and h=5h=5.