Find the mean absolute deviation
of the data set 65, 75, 64, 60, 64, 20, 80, 125?

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax

What makes a trapezoid an isosceles trapezoid?