A good way to remember the order of operations is Please Excuse My Dear Aunt Sally, or PEMDAS. PEMDAS stands for Parentheses, Exponents, Multiplication/Division, Addition/Subtraction. If multiplication and division are in the same problem, you go in order. Same with addition in subtraction. What that means in this example is that since in PEMDAS, the M is first, you would multiply first instead of subtracting. :)
Assuming annual compounding, then: FV=15000*(1+.035)^15 FV=15000*1.6753488307521611831782355996538 FV=$25130.23 At the end of 15 years, Tom should have $25130.23 in his account.
Theoretical probability (TP) is given by: TP=[Number of favorable (desired) outcomes]/[Total number of possible outcomes] From the information given: Number of purple blocks=19 Total number of possible outcomes=125 thus; TP=19/125 =0.152
