John ran the 100-m dash with a time of 9.979.97 sec. if this pace could be maintained for an entire 26 dash mi26-mi marathon, what would his time be?

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?

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

Helena lost her marbles. but then she found them and put them in 44 bags with mm marbles in each bag. she had 33 marbles left over that didn't fit in the bags.