Can someone help me thanks

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42

Select the correct answer. employee earnings per month($) 1 1,200 2 2,600 3 1,800 4 1,450 5 3,500 6 2,800 7 12,500 8 3,200 which measure of spread is best for the data in the table? a. range b. quartiles c. interquartile range d. mean absolute deviation

Ratio of circumference to diameter example plz i need to now what it looks like.