When you are looking for a unit rate in a graph you want to know how much the dependent (y) variable will increase by when the independent (x) variable is increased by one
The answer is 22.8
Cos 64 = adj./hypotenuse
Cos64=10/x
X(cos64)=10
X= 10/cos64
= 22.8
Square: 1, 9
even: 2, 6, 8, 10, 12
both: 4
A=Area
A=3.14 x 10²=20
A=3.14 x 20 = 62.8
A=62.8