4. An equilateral triangle has a perimeter of 60 cm. Find the exact
altitude of the triangle.

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)