Z – 9 = 27
a. 3
b. 16
c. 18
d. 36

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

How does reflecting or rotating a figure change the interior angles of the figure?

6. sarah saved $12.75 every week for a number of weeks, w. she received an additional $25 during the last week in which she saved money. write and solve an equation to find the number of weeks, w, for which sarah had saved money if she has $114.25 now.