If an object fell to the ground from the top of a 1,600-foot-tall building at an average speed of 160 feet per second, how long did it take to fall?

Farnesene is a sesquiterpene. how many different isomers arising from double-bond isomerizations are possible? g

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?