A hotel elevator can carry no more than 1,800 pounds. A loaded cart weighing 130 pounds is placed inside the elevator. Which inequality indicates the amount of additional weight, w, that the elevator can carry? PLS HELP

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

Anyone know? will mark brainliest if you're correct!

Apool measures 12.3 feet by 16.6 feet. if the longer wall of the pool has a diagonal of 17.8 feet, what is the volume of the pool? (round to nearest tenth)