Mrs. Daniel is grading math tests in the teachers' lounge. She has already
finished grading 18 assignments, and is grading 3 more assignments per hour.
Her teaching assistant just came in to help her. She can grade at a rate of 9
assignments every hour. How long will it take for her to catch up to Mrs. Daniel?
How many assignments will they have each graded?

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap

Write a similarity statement for the similar triangles. afgh ~ a