Use the table to solve.

kevin's supply list for
a saltwater aquarium 40-gal tank $170 aquarium light $30 filtration system $65 thermometer $2 10-lb bag of gravel $13 large rocks $3 per lb clown fish $20 each damselfish $7 eachkevin bought 6 bags of gravel to cover the bottom of his fish tank. he has 7 pounds of gravel left over. how much gravel did kevin use to cover the bottom of the tank?

you never say the total so we cant find the percentage used for petrol

step-by-step explanation:

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

explanation:

previous steps have made pa≅ pb ≅ st ≅ su. setting the compass width to ab allows you to make tu the same length. then δstu ≅ δpab by the sss congruence postulate, and ∠p ≅ ∠s by the reason cpctc.

hi im bob : l

step-by-step explanation: