Lines a and b are represented by the equations given below: line a: x + 2y = 3 line b: x + y = 3 which statement is true about the solution to the set of equations? (1 point) there are infinitely many solutions. there are two solutions. there is one solution. there is no solution.

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?