Need with these two questions. will give 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?

Use the distributive law to multiply. 3(4x + 5y + 6)

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.