There are 40 tables in a library, with 30% of them seating 4 people. the tables remaining only seat 22 people. how many seats are there in the library?

The dolphins at the webster are fed 1/2 of a bucket of fish each day the sea otters are fed 1/2 as much fish as the dolphins how many buckets of fish are the sea fed each day? simplify you answer and write it as a proper fraction or as a whole or mixed number

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?