1. Twenty percent of a certain number is 16. Find the number.
2.The length of a rectangle is 5 meters more than twice the width. The perimeter of the rectangle is 46 meters. Find the length and width of the rectangle.
3. One angle of a triangle is 47 degrees of the other two angles, one of them is 3degress less than three times the other angle. Find the measures of the two angles.
Please show all work.