Kim sold half of her comic books and then bought eight more. She now has 38. With
how many did she begin?

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

Which geometric principle is used to justify the construction below?