Armando bought 45 baseball cards. of the 12 friends he invited to his cookout, half of them were able to attend. armando gave each of his friends at the cookout the same number of baseball cards and had 3 cards left for himself. how many baseball cards did each friend receive?

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.