How do you illustrste inequalities on a number line

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)

Find the missing factor. write your answer inexponential form.9^2=9^4×