Two brothers walk toward each other from a starting distance of 1200 meters. The elder walks at 80 meters per minute while
the younger walks at 70 meters per minute. How long does it
take them to be only 450 meters from each other for the first
time?

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

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

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?