Ms. Hight is deciding between Investments Rand S. If she chooses Investment R she has a 1/2 chance of earning $500 and a chance of losing $500. If she chooses 1/2 Investment Sshe will definitely earn $100. Which is true of her investment choices?

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?

Solve the equation for b: a= (1/2)(b)(h)

Astudent was asked to find the square of 7x+3. the student quickly wrote (7x+3)^3= 49x^2+9. identify the student's error and provide the correct answer.