Ethan sold 2/3 gallon of lemonade. Kayla sold some lemonade too. Together, they sold 1/4 gallons. Who sold more lemonade, Ethan or Kayla? How much more?

Abcd is a square. what is the measure of angle bac

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?