How many liters of water did they use each day?

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

During a bike challenge riders have to collect various colored ribbons each 1/2 mile they collect a red ribbon each eighth mile they collect a green ribbon and each quarter mile they collect a blue ribbion wich colors of ribion will be collected at the 3/4 markrer

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11