Write the recursive formula for the geometric sequence. -1/36, 1/13, -1/4, 3/4

Which pair of lines is parallel? a. y=4x+1 and y+4=5 b. y=-2+x and 2y-2x=-2 c. y=1/4x + 2 and y-2=1/2x d. y=1/5x+1 and 5y+x= 10

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?