If marianne bought 10 pounds of of potting soil and her father tells her he needs 13 pounds of potting soil how much additional bags should he buy

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?

This is different from the first one can someone me

Indicate the formula for the following conditions: p^c(n, r)=