A runner ran 2/3 of a 5 kilometer race in 21 minutes. They ran the entire race at a constant speed. Is the relationship between time and distance proportional. (EXPLAIN WHY OR WHY NOT)

Part a : solve - vp + 40 < 65 for v . part b : solve 7w - 3r = 15 for r show your work!

Ian is in training for a national hot dog eating contest on the 4th of july. on his first day of training, he eats 4 hot dogs. each day, he plans to eat 110% of the number of hot dogs he ate the previous day. write an explicit formula that could be used to find the number of hot dogs ian will eat on any particular day.

Could someone me with this question i’ve been stuck on it for 20 minutes