After 4 years at 3% simple interest per year, your savings account earns $90.00. What is the principal?

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?

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !