The school’s fish eat 1/5 jar of food per day. How many days will 4 1/2 jars feed them? Possible answers : 22 1/2days, 21 days, 21 1/2 days, 22 days

Can someone me with this problem . show your work .

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.

D(5, 7). e(4,3), and f(8, 2) form the vertices of a triangle. what is mzdef? oa. 30° ob. 45° oc. 60° od 90°