Evaluate the expression
2+1 •16-4

The function below show how much jayna and hannah charge for babysitting. which statement best compares the two plants?

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?

If set d is not the empty set but is a subset of set e, then which of the following is true? d ∩ e = d d ∩ e = e d ∩ e = ∅