Just the first one, r is 4x+2, and h is 5x+4, plug them into the formula pls
The value of x is 4.
Step-by-step explanation:
Consider a Rectangle ABCD
AB as Top
CD as Bottom
AB = -1 + 4x
CD = 3x + 3
To Find:
x = ?
Solution:
In a Rectangle ABCD
Opposite sides of rectangle congruent,
AB = CD
Top = Bottom
on substituting we get

The value of x is 4.
8,3 and 5 would be my guess
I and -2 is the solve for the equation