Afamily swimming pool holds 60m^3 of water. the function below give the cubic meters of water in the pool, taking into account water lost to evaporation over x days. how much water does the pool have after 7 days?

The long jump record, in feet, at a particular school can be modeled by f(x) = 19.6 + 2.5ln(x + 1) where x is the number of years since records began to be kept at the school. what is the record for the long jump 11 years after record started being kept? round your answer to the nearest tenth.

Y=4x^2+x-1 solve using quadratic formula

Just tell me how to set up the equation.