Answers:Part A: The value of x is 0.Part B: X can be any real number. In Part A, you have to first evaluate 7^2. This is 49. Now, write the equation 49^x = 1. We know that if you raise any number to 0, then the answer is 1. In Part B, you have to first evaluate 7^0, that is 1. Now, we have the equation 1^x = 1. In this case, 1 raised to any exponent is still only 1. Imagine 1^17, this would be 1 times itself 17 times or just 1. Therefore any number will work in Part B.
The number of triangles is n-2 n= number of sides 8-2= 6 triangles if applying this you won't have to draw any diagonals to find the number of triangles just subtract 2 from the number of sides