The bases of a trapezoid are 11 meters and 14 meters. its height is 10 meters. what is the area of the trapezoid?

If 20% of a number is 35, what is 50% of that number?

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Margie is practicing for an upcoming tennis tournament. her first serve is good 20 out of 30 times on average. margie wants to know the estimated probability that her first serve will be good at least four of the next six times she serves. how could she design a simulation for this scenario?