15. A 3 kg ball is thrown upward with a velocity of 10 m/s. Assuming there is no friction or air resistance, calculate the max
height the ball will achieve when it comes to rest.
a. between 8 m & 12 m
b. greater than 12 m
c. less than 4 m
d. between 4 m & 8 m

You’re ordering more thread for blue jeans co. you usually purchase from ted’s threads, which sells 12 thread spools for $27. you recently received a notice from wade's wares that says you can buy thread from them for $2.30 each for the first 2 dozen and $2 a spool thereafter. you need to order 5 dozen spools. what percentage can you save by going with wade’s wares?