Select the correct answer. Find the area of the rectangle below.
(3x + 4) feet
(x + 3) feet
(3x2 + 15x + 12) square feet
(3x2 + + 13x + 7) square feet
(3x² + 13x + 12) square feet

The monthly texting plan of all star cell is $11 per month and $0.25 per text. the monthly texting plan of top line cell is $14 per month and $0.15 per text. a student wants to set up a system of equations to find the number of texts for which the total monthly cost of the two companies is the same. he uses the variables x and y. he lets y represent the total monthly cost. what will x represent? x = number of texts x = cost of the total number of texts x = total monthly cost x = cost of each text