please help me with the following matrix problem i am having trouble with

MamAS Assessment a 15x 9.5 SystemsofLme: x Please he'p manmwlth x NM'Dashboard x Swedenprs Gnug'es' x / e e | a Secure \\ h1lps://malhas.pvcmarIcopa.edu/assessmenl/shuwtestphp Apps @chonnmea a Amamnxam'Samsu ASeMuAvizanarAl I nda debunk H 133' clarteMountar D Nemae Y Vanoo D sedagmtalgelznm Home > MAT151 1017 El Spr ng 16195 On rue >mment Video Leeson 9.6 Systems of Linear Equations - Matrices Rememhei the tonowrng: . You shomd nave pnnted oil your Notes (ormrs (lass m the Course Materials iomar. 2. You snoum be watmmg tne course \\deu and ng m your pnnued note gurde as you wattn me vrdeo. II rtrs wm'ten on me streen omre mdeo, rt shoum he wntten on your notes. 3. You er not be ame to begun the Homework tor mus semon untH you (omp'ete tins assrgnment at 100%. 4. You tan tontmue to attemptdie You Try questrons as many tunes asyou hke. Alter gemng a pmb'em wrong 3 umes, you ran thtk on "Try anothei sunuar quesuon" to get more attempts atme pmhlem (See Prmure below) Score on last attempt: |:| 0 out of 5 (pans: 012.5, t 02.5) Score in graeeoook: |:| 0 out of 5 (pans: 8 9/25,\" 9/25) Try another srmuar questron or seed another question Th'squeslion,wilh your taste swer an bebw Tom Points Possrh'e: 100 when you are done, tuck nerero see a summary oryeur scare Dnrha m ' Part 1 Write Ihe system of equations as In augmenied matrix. harm to Om Part 2 4" 7 y 1\"\" Jumumqm 72%: + 5y 7 21 : 250 \""3 12!: 7 2y + z : 400 lump or (gm Part 4 harm to Om Submil Question 1. Pomts possrme: 25 ms rs attempt 1 0! 3. teeree