I think that it’s observational study because she is observing them. If not experiment.
Answer:
The Consumer Price Index (CPI) is a measure of the average change over time in the prices paid by urban consumers for a market basket of consumer goods and services.
Step-by-step explanation:
Answer: 1.55
Step-by-step explanation:70 percent sure, might be .155
Step-by-step explanation:
5x+y=-24x+3y=-2
-24x-5x=-29x
y=-29x+3y=-2
y+3y=4y
4y=-29x=-2
+2 +2
4y=-27
/4 /4
y=-6.75
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