Find th mean of the integers -3,10,2,-13,-11

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?

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

Mr. vector door is buying two new cowboy hats all together the hats cost $75.12 the second heart cost twice as much as the first hat what is the price of the more expensive at round to the nearest hundredth