Well, all you have to do to solve this is multiply 850 times 10, which is 8,500, so that means there are 8 thousands.
PLEASE choose my answer as the Brainliest, as I have explained my answer well, and I am REALLY close to ranking up!
THANK YOU AND I HOPE I HELPED! =D
The path that Gloria follows when she jumped is a path of parabola.
The equation of the parabola that describes the path of her jump is 
The given parameters are:


<em>Assume she starts from the origin (0,0)</em>
The midpoint would be:



So, the vertex of the parabola is:

Express properly as:

A point on the graph would be:

The equation of a parabola is calculated using:

Substitute
in 

Substitute
in 


Collect like terms

Solve for a


Simplify

Substitute
in 

Hence, the equation of the parabola that describes the path of her jump is 
See attachment for the graph
Read more about equations of parabola at:
brainly.com/question/4074088
Step-by-step explanation:
Step-by-step explanation:
question number 2 first part X + 2 is equal to 7 .. x is equal to 7 - 2x is equal to 5 ..second part 3 x minus 1 is equal to 3 x is equal to 23 - 1 = 3x=24 x=24÷3=x=8ans
Answer:
Step-by-step explanation:
If you factor the expression 7a+21 you can get:
7 × (a+3)