D is equivalent because brackets don’t change anything here
Answer: -2
In order to find the slope of this equation you must put it into slope form which is y=mx+b
Solved: y= -2+5
M is the slope
Step-by-step explanation:
Let's call x the lenght and y the height. The perimeter will be:
p = 2x + 2y = 10
When the lenght is halved and the height double we'll have:
p = x + 4y = 14
These 2 equations form a system of equations2 that can be solved and give as result:
y = 3
x = 2
the height:

(with g being the gravitational acceleration)
Answer:
If it's not too late by now, the answer is 19.9 