How does the size of the product compare to the size of one factor when multiplying fractions less than one

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?

Ateacher wanted to buy a chair, a bookshelf, two tables and a desk. she spent $900 for all five items and the chair and the desk combined 70% of her total. if the bookshelf cost $50, how much did each of the tables cost?