Answer:
It is not valid since there is more than one variable being changed at one.
Step-by-step explanation:
Jackson changed the brand of soil, but he also changes the amount of water, and the amount of sunlight the plants are receiving, so his conclusion that the soil was more effective is not valid.
Answer:
a/1/$400
Step-by-step explanation:
240 divided by 12=20
20x10x2=$400
This is hard to understand , do u have a photo
The first step to finding the equation of a line when 2 points are known....
the first step would be to use the slope formula to find the slope of the line
Answer:
128 inches
Step-by-step explanation: