Using the following equation, what does l equal? b=l/4πd^2 a. l=b/4πd^2 b. l=4πb/d^2 c. l=d^2b d. l=4πd^2b

The appalachian trail is a hiking trail that passes through the appalachian mountains. three members of a teen hiking group hiked a section of the trail. the hikers stopped at a rest area and equally shared 3 4 gallon of water. how much water did each person get?

Anyone know? will mark brainliest if correct!

Suppose a gym membership has an initial enrollment fee of $75 and then a fee of $29 a month. which equation models the cost, c, of the gym membership for m months?