Ben put $75 into a cd that pays 1.5% interest compounded monthly according to the rule of 72 approximately how long will it take for his money to double?

The answer is 48 years.

Step-by-step explanation:

The Rule of 72 is used by investors to get a rough estimate of how long an investment will take to double itself with a fixed annual rate of interest. Hence, we divide the given rate of interest by 72 to get a rough estimate.

Here the given information is : Ben put $75 into a CD that pays 1.5% interest compounded monthly

So, time needed to double the CD is years.

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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