The number of points scored by each team in the NHL at the end of the season is
normally distribute with a mean of 89 and standard deviation of 11. Find P(x<85).

What is the value of the digit 1 in the number 13?

Seymour is twice as old as cassandra. if 16 is added to cassandra’s age and 16 is subtracted from seymour’s age, their ages become equal. what are their present ages? show !

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x