Joe goodnuff had been eating on a square card table until he bought a new rectangular dining table. the new table is 2ft longer and 1ft wider then the card table it has an area of 24.75ft. how long was a side of his old square card table?
explain this to me don't just give me a answer!

Ateacher noticed 5/8 of the students were wearing either blue shorts or white shorts. write two different ways this could be done.

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.

Can anyone me with this question?