X*0.2-7=3
+7 +7
x*0.2=10
divide by 0.2 on both sides
x=50
Answer:
756 m²
Step-by-step explanation:
I just know the answer XD
Answer:

Step-by-step explanation:
Given


Required
Determine the volume of air
Density is calculated using:

Substitute values for Density and Mass

Convert lb to grams


Solve for Volume


Convert mL to L


Represent using scientific notation

Approximate

Answer:
not a solution
Step-by-step explanation:
Substitute the point into the equation and see if it is true
y = 7x
4 = 7*1
4 = 7
This is not true so it is not a solution