Jenna is having her birthday party at the Ice Cream Party Palace. The Ice Cream Party Palace charges $2.49 for each ice cream cone and $24.99 for a birthday cake.
For her birthday party Jenna decides to buy a birthday cake and an ice cream cone
for each of her friends. Jenna needs to determine the total cost for her birthday party.
The answer has to be in y=mx+b format.

a. -0.3 > -0.33

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42

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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