Answer:
times you have to remove a red marble
Step-by-step explanation:
8 /30/=3.75
=3.75








I'm not the best at writing, but I can try. so here's an idea:you can have as your scenario something like "On a vase shaped like a rectangular prism is a flower. Knowing that the stem of the flower is the diagonal of the prism, the diagonal of the base is 18 and the sinus of the angle between the stem and the diagonal(of the base) is 4/5, find the stem's length and the height of the vase"
Answer:
there is one line of symmetry if you look closely at the shape
