Answer:

Step-by-step explanation:

Answer:
C
Step-by-step explanation:
C
Answer:x+42+3x = 90
Combine like terms:
3x+x = 4x
42+4x = 90
Subtract 42 to both sides
90-42 = 48
Divide 4 by 48
48/4 = 12
X = 12
100% right
Step-by-step explanation:
Answer:
2261.46
Step-by-step explanation:
51142% = 5114200
√ 5114200 = 2261.46
-2 is the answer because you do the change of y over the change of x.