PLZ I NEED URGENT HELP

Project 4 Score ; 41

Step-by-step explanation:

Assuming that Project 4's score is x;

( Project 1 + Project 2 + Project 3 + Project 4 ) / 4 ⇒ take to substituting the value of each Project, provided Project 4's score being x;

45 = 42 + 49 + 48 + x / 4 ⇒ combine like terms,

45 = ( 139 + x ) / 4 ⇒ let 4 be a common denominator among numerator terms,

45 = 139 / 4 + x / 4 ⇒ divide 139 over 4,

45 = 34.75 + x / 4 ⇒ subtract 34.75 from either side,

10.25 = x / 4 ⇒ Multiply either side by 4,

x = 41 = Score of Project 4,

Solution; Project 4 ⇒ 41

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