Pls help due in 15 mins

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

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.

Consider the sequence below. 3 , 1 , 1/3 , 1/9 , select the explicit function which defines the sequence.