21 is the answer. you divide 60÷20=3 , so he went on 3 rides. if each ride takes 7 mins you'll multiply 7×3 or add 7+7+7

**Answer:**

what is this?

**Step-by-step explanation:**

**Answer:**

5√5

**Step-by-step explanation:**

You can rewrite √75 as √(25 * 5) and since 25 is a perfect square, you can find the square root and take that outside of the square root. √25 = 5, so √75 is equal to 5√5, and that cannot be simplified furthermore.

**Answer:**

False

**Step-by-step explanation:**

The mid segments are the lines between midpoints on the triangle. They aren't parallel, because they form a triangle inside the triangle.