4) Alison is deciding between two cell phone plans that have the same smart phone she wants as part of the plan Sonic Cellular: $650 for the phone plus $77.75 per month for unlimited data. Magical Mobile: $800 for the phone plus $70.25 per month for unlimited data. At how many months will the total cost of the plans, including the cell phone cost, be the same for the two plans? What is the total cost of that number of months? Write a system of two linear equations and solve it algebraically to answer the questions Let: t = total cost of the plan, including the cell phone, based on the number of months m = number of months on the plan​

x> 6

step-by-step explanation:

8x+8> 7x+14

8x-7x> 14-8

x> 6

figure c

step-by-step explanation:

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answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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