If the average of 7,12,6,10 and p is 8, find the value of p​

What is the size of the matrix resulting from

`if you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain. ''.

Determine which solution is correct for solving 5/7y=6 reciprocals.