. You have been evaluating cell phone providers. Double Mint Mobile has a $100 startup fee and costs $30 per month for a cell phone plan. BT&T has a $20 startup fee and costs $50 per month for a similar cell phone plan. After how many months will both cell phone plans cost the same?

What is the value of x in the following equation? -3x-2=2x+8

What are the solutions of the equation? 5z^2 + 9z - 2 = 0 a. 1, -2 b. 1, 2 c. 1/5, -2 d. 1/5, 2

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe