It cost it cost $3.45 to buy 3/4 lb of chopped walnuts how much would it cost to purchase 7.5 lb of walnuts explain or show your reasoning

The rumpart family is building a new room onto their house. the width of the new room will be 16 feet. the length of the room will be 4% greater than the width. write an expression to find the length of the new room. what will be the area of this new room?

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

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.