Answer:
5
Step-by-step explanation:
b − a
Let a = 2 and b = 7
7-2
5
Answer:
I think the oil pollutes the groundwater
Step-by-step explanation:
My six grade science teacher once taught us something about this, but that was a year ago so I might be wrong, but I'm pretty sure that the oil will spread and then pollute local rivers and streams, by polluting the groundwater.
Answer: 6
Step-by-step explanation:
This is a direct application of the exponent rule
.
Answer:
yes, there is no or zero rate of average change in the 1950 - 1960 ten-year period