Solve x2 + 6x = 7 by completing the square. Which is the solution set of the equation?
{-7, 13}
1-3 - 710, -3 + 710)
13 - V10, 3 + V10
{1, 7}

Find two numbers if their sum is 91 and the ratio is 6: 7?

Find the interior angle of a regular polygon which has 6 sides

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.