10. writing to explain jill measured the length of her eraser she wrote 5 on her paper without the unit which metric unit of measure should jill include a w

Solve 13 + w/7= -18 (w/7 is a fraction)

1/2+1/6-3/4 simplify the given expression leaving the answer in improper fraction form.

Use mathematical induction to prove the statement is true for all positive integers n, or show why it is false. 1^2 + 4^2 + 7^2 + + (3n - 2)^2 = [n(6n^2-3n-1)/2]