The area, A, of a square is a function of the length, x, of a side of the square. Which of the following expresses this function, A(x), and the value at x = 2.5 cm? 1. a(x)=x^2; 6.25cm^2
2. a(x)=4x^2; 25cm^2
3. a(x)=2x; 5cm^2
4. a(x)=4x; 10cm^2

Data are collected to see how many ice-cream cones are sold at a ballpark in a week. day 1 is sunday and day 7 is the following saturday. use the data from the table to create a scatter plot.

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.

Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2