Francisco is making an effort to to drink more water, and has set a goal of 2 liters per day. he wants to know the volume of the water bottle he takes to school everyday.

(note i put the graph in so plz )the graph shows the amount of water that remains in a barrel after it begins to leak. the variable x represents the number of days that have passed since the barrel was filled, and y represents the number of gallons of water that remain in the barrel. what is the slope of the line

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?