Lasix (a drug that treats fluid retention) at 28% strength must be mixed with Lasix at 3% strength to make 40 liters of Lasix solution with a strength of 17%. Define your variables and set up a system of equations to determine how much 28% strength solution must be mixed with the 3% solution.

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.

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4

Ibeg you to me 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?