Please help me. Here are the final scores for professional soccer team for past 5 tournament
3, 4, 1, 5, 2
Find the mean absolute deviation of team's scores.
A. 1.2
B. 3
C. 0.6
D. 3.2

Math it's appreciated. (picture provided)

Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.