Ran 4 days he ran 1.5 miles around neighborhood before school and a longer route after school at the end of the week he ran 28 miles. How many miles did he run after school

Solve: 25 points find the fifth term of an increasing geometric progression if the first term is equal to 7−3 √5 and each term (starting with the second) is equal to the difference of the term following it and the term preceding it.