20% of the elves in the workshop finished making their toys early. If 15 elves finished working early, how many elves were in the workshop in all?

Lines p and q intersect. find the value of b. show your work. cite any theorems you use.

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.