Hey guys what this answer step-by-step step 2(7x+5)=122

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side then from the larger side of the rectangle. the perimeter of the rectangle is equal to 56 cm. find the lengths of the sides of the rectangle. 16 points answer quick