CAN SOMEBODY HELP ME WITH THESE GEOMETRY QUESTIONS

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.

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is:

East black horse $0.25 total budget is $555 it'll cost $115 for other supplies about how many flyers do you think we can buy