Please help.

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?

Write each fraction as an equivalent fraction with a denominator of 120then write the original fractions in order from samllest to largest

Find the commission on a $590.00 sale if the commission is 15%.