why a flat surface of a rectangular prism called faces?

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Click the arrows to advance or review slides. mapping carbohydrates to food carbohydrates (grams) 15 food (quantity) bread (1 slice) pasta (1/3 cup) apple (1 medium) mashed potatoes (1/2 cup) broccoli (1/2 cup) carrots (1/2 cup) milk (1 cup) yogurt (6 oz.) 12 12 is jennifer's relation a function? yes no f 1 of 2 → jennifer figure out the difference between a function and a relation by answering the questions about her food choices

Abox holds 500 paperclips. after a week on the teacher's desk 239 paperclips remained. how many paperclips were used?