Sally likes to count the number of cars parked on her street. She counted 3 cars on one side of the street and 8 cars on the other side of the street. If each car had 4 tires, how many tires did the cars have altogether? Show your work or explain your answer. Please help-

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.

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?