What is the new coordinate of Point B (8,7) with scale factor r=2?

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

Simplify the expression 10/11(22z) + (a+5) -1

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4