Leo throws a rock upward from the top of an 80-foot cliff. The rock lands at the base of the cliff. The rock's height above the base of the cliff after t seconds is represented by ℎ()=−16^2+64+80. For how long is the rock in the air?

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?

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

What is the equation of a line passing through (-6,5) and having a slope of 1/3