At the skate park, a new concrete ramp is built in the shape of a right triangular prism, as shown below. How many cubic feet of concrete are used to built the ramp?

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Yahir designs bracelets. he uses between 9 and 15 red and yellow beads in the ratio of 2 red bead to 5 yellow beads. drag the beads into the container to meet these requirements

Which image (a’ b’ c’ d’) of abcd cannot he produced using only reflections ?