Mr. chang wants to retire in 10 years. he deposits $650.00 every three months into his retirement investment account. if the account's interest rate is 7.8% compounded quarterly, how much will he have at the end of 5 years, when 20 quarterly deposits of $650.00 have been made?
give answer in us dollars and cents rounded to the nearest cent (do not enter "$" sign)

Mr. Chang will have 15714.90 dollars.

Step-by-step explanation:

p = 650

r =

Number of periods or n =

Future value formula is :

Putting the values in formula we get;

= $15714.90

Hence, Mr. Chang will have 15714.90 dollars.

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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7.3

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