Hey guys in the middle of my final! help? 30 points going to mark the brainiest too!

One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.

(10. in the figure, a aabc is drawn tocircumscribe a circle of radius 3 cm ,such thatthe segments bd and dc are respectively oflength 6 cm and 9 cm. find the length ofsides ab and ac.

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3