Let’s say a small person with a mass of 50 kg walks up to two flights of stairs. A heavy person with a mass of 105 kg walks up the same stairs. Who did more work and why? (Hint: Remember that a newton of gravitational force (weight) is about equal to 100 grams.)

Determine the fraction of total interest owed. after the fourth month of a 12-month loan: the numerator is: {(n + ) + (n + ) + (n + ) + (n + )} = , and the denominator is: {(n) + (n + 1) + + (n + )} = . therefore, the fraction is numerator/denominator (to the nearest tenth) =

Mario has $14.35 left in his wallet. he spent $148.43 for tablecloths. then, he spent $92.05 for napkins. how much money did mario have in his wallet to start with?

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.