Which quadratic equation fits the data in the table?   x    y −5    33 −2    9 −1    5 0    3 3    9 4    15 6    33 - y=x2−x−3 y=x2−x+3 y = x² + x + 3 y=−x2−x−3

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.)

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

Jabari is power washing houses for a summer job. for every job, he charges an initial fee plus $30 for each hour of work. his total fee for a 4 -hour job, for instance, is $170 . jabari's total fee,f, for a single job is a function of the number,t, of hours it takes him to complete the job. write the function's formula.