Brainleist answer will be

a small town surveyed 250 adults, 180 of whom were parents, about whether a park should be expanded. the results showed that 150 of the adults who were parents and 40 of the adults who were not parents thought the park should be expanded.

use this information to complete the two-way table below. enter the correct values in the boxes.

           yes          

parents-150

not parents-40

no

parents-30

not parents-30

`1234567890-=/*-qwertyuiop[]asdfghjkl; '\\zxcvbnm,./+ /

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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answers

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