Chris baked 95 cookies.
Step-by-step explanation:
Given,
Cookies baked by Haley = 50
Cookies baked by Chuck = 65
Cookies baked by Dana = 90
Average of them = 75
Let,
Cookies baked by Chris = x
Average = 

Multiplying both sides by 4

Chris baked 95 cookies.
Keywords: addition, average
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#LearnwithBrainly
Answer:
A. THE RULE WHICH ASSIGNS EACH PERSON USERNAME
Step-by-step explanation:
MARK PLS
Answer:
first one is 65 second one 75 third one 25
Step-by-step explanation:
Answer:
a. 3x +51=180
x=43
b. 3(43)+51 =180 51 degrees; 129 degrees
Step-by-step explanation:
3x +51 =180
3x=180-51
3x=129
x=43
It is not linear, because the x value is cubed, creating a curved line, while a linear line is straight.