How many solutions exist for the system of equations given below?
3a + 4b = 20
12a = 80 − 16b

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed

i agree because i see the other persons thinking is clear

step-by-step explanation:

let pq = qr = rs = x, and xz = y and zu = z.

if the horizontal lines are parallel, then corresponding segments are in proportion:

substitute:

therefore 3 = y = z.

xu = y + z → xu = 3 + 3 = 6