4. Find the area of the trapezoid. Formula is 1/2h(b, +b) Base-3x+1 height-x+1 top line of trapezoid-5x-4

Derek purchased a new gym membership. it costs him seven dollars a month plus two dollars for every time that he visits the gym. he wants to spend less than 25 dollars a month to visit the gym. write an inequality that models the situation using the variable v for the number of visits per month. also find the maximum number of visits he can make to the gym and still keep his cost below 25 dollars a month.