how much time alex will need to walk to his school which is 2 1/4 miles from his house if he walks at a speed of 3 miles per hour. If correct you get brainliest

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?

The length of triangle base is 26. a line, which is parallel to the base divides the triangle into two equal area parts. find the length of the segment between triangle legs.

Which one ? is the answer and how to find this answer