The (T) total number of dollars in (1) five-dollar bills and (t) ten-dollar bills is: Multiple choice

T=5+f+10+t

Asquare parking lot has 6,400 square meters what is the length in meters

Both the red and blue line segments stretch from the center of the circle to a point on the circle. the length of the blue segment is 5. how long is the red line segment?

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)