Eli is comparing the cost of cell phone services. The phone he wants costs $200 at Sparrowtown Cellular, and the unlimited calling plan through their carrier would cost $1 per
day. At Larsen Electronics, Eli could purchase the same phone for $100 and also get an
unlimited calling plan for $2 per day. After some number of days, the two options would end
up having the same total cost. What would the total cost be?

What’s 8y+48 and factor each expression completely

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %

Using elimination, what is -4x+2y=-12 4x+8y=-24