I'll mark the first correct answer brainliest. i only need the bottom question. thanks :)

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

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.

A. 530 ft^2 b. 500 ft^2 c. 470 ft^2 d. 450 ft^2