Miyo has $15.42 and buys a cup of lemonade for $1.35. She spends one-third of her remaining money on popcorn. How much money does Miyo spend on popcorn? $3.79, $4.69, $5.14 ,$14.07

Me with this assignment ! i only partially understand, so explain. also it's a work sample. at the championship bike race, steve and paula were fighting for first place. steve was 175 feet ahead of paula and had only 300 feet left to go. he was very tired and was going only 9 feet per second. paula was desperate to catch up and was going 15 feet per second. who won the bike race and by how far did she/he win?

What are the solutions of the equation x4 – 5x2 – 14 = 0? use factoring to solve. someone !

David and alton are training for a race. they spend 35 minutes stretching and then go on a 5 mile practice run. david runs at a pace of 7 min/mile. alton runs at a pace of 8 min/mile. write an equation for each runner that shows the total length of their workout. then solve each equation showing your work