4) From 11:00 AM to 4 PM, a whale's elevation changed from -60 meters to-105 meters. If the whale's elevation continues changing at a constant rate, at what time
was the whale's elevation -213 meters?

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?

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

God's gym charges a sign-up fee of $100 plus $30 per month. write an expression to represent how much someone would pay for a membership.