Solve for k.
-6k-7=-3-7k

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.

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Find the quotient with the restriction.