Where is the blue dot on the number line? -7 ? -7.5. -8

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5