Answer: 
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Work Shown:
Use the distance formula.

Or you could use the pythagorean theorem, which is how the distance formula is set up.
Answer:
800 pounds.
Step-by-step explanation:
We have been given that an object that weighs 24 pounds on Mercury weighs approximately 80 pounds on Earth. A rock weighs 240 pounds on Mercury. We are asked to find the weight of rock on Earth.
We will use proportions to solve our given problem as proportions state that the ratio between two proportional quantities is equal.

Upon substituting our given value, we will get:




Therefore, the weight of rock on Earth would be approximately 800 pounds.
Answer:
you didn't include a picture.
Step-by-step explanation:
if you want to include a picture I can try to help you
All sides are equal in an equilateral triangle and the perpendicular bisects the side too.
so BC will be bisected and the segments be 5 each.
you can use Pythagoras theorem to find the altitude length, hypotenuse will be one side of the triangle.

$h^2=100-25=75$
$h=\sqrt{75}=5\sqrt3$
Answer: 3/2 or 1 .5
Step-by-step explanation: