Please help! I will give Brainliest!

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

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)

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air