Wouldn’t number seven be
2a+2b because of the distributive property?
Answer:

Step-by-step explanation:
Given the system of equations:


In order to find the y coordinate of the solution we must first find the solution to this system of equations. We first start by solving one of the given equations and then substitute the answer of that into the second equation and further solve to get the final answers.




















Hope this helps.
Answer:
$20,857.14
Step-by-step explanation:
D. an equilateral triangle
Two of
's angles are 60 degrees, so that means its last angle will also be 60 degrees.
60 + 60 = 120, 180 - 120 = 60
Equiangular triangles are always equilateral.
A perfect square is a number that has an whole number square root. For example, 25 is a perfect square, because is 5, a whole number.
We need to find the perfect square of the numbers 3x 4.
To find perfect square we square the numbers .squaring means multiplying the number by itself.
Square of 3 is 3x3=9
Square of 4 is 4x4=16.
The correct option is perfect square of 3x4 is 9x16.