John finished his English assignment in 1/3 hours. Then he completed his chemistry assignment in 2/5 hours. What was the total amount of time John spent doing these two assignments? these two assignments?

If jaime wants to find 60% of 320, which table should he use?

In 2000 there were 100 rabbits in central park the population increased by 16% each year ? write a function to illustrate the situation. how many rabbits were in central park in 2005 . predict how many rabbits there will be at the end of this year we are in 2018?

Atourist boat is used for sightseeing in a nearby river. the boat travels 2.4 miles downstream and in the same amount of time, it travels 1.8 miles upstream. if the boat travels at an average speed of 21 miles per hour in the still water, find the current of the river.