An MP3 player costs $70 and song downloads cost $0.95 each. Write an expression that represents the cost of the MP3 player and x number of song downloads

Asap will give brainliest and a lot of points

Place the following steps in order to complete the square and solve the quadratic equation,

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.