4. The cost to rent a room for a party is a one-time fee of $90 plus $60 per hour for a DJ. If the cost of the party was $300, how many hours did they have the DJ?

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

Ten times the square of a non-zero number is eqaul to ninety times the number