An aquarium holds 6-1/4 gallons of water. The water evaporated and dropped to 4/5 of this amount. How many gallons of water remained in the aquarium?

a
5
b
4/5
c
1
d
1/4

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

Complete the table for different values of x in the polynomial expression -7x2 + 32x + 240. then, determine the optimal price that the taco truck should sell its tacos for. assume whole dollar amounts for the tacos.

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?