32 students.
3 do none, so we can leave them out.
29 students.
18 + 16 = 34
34 - 29 = 5 students doing both subjects.
Answer:
Three zeros 
x-intercepts: (-4,0), (1,0), (6,0)
Step-by-step explanation:
Plot the graph of the function 
on the coordinate plane. This graph intersects the x-axis at three different points (see attached diagram):
This means are zeros of the function
You would write m= y2 -y1/x2-x1 so the answer would be 8/12
Expand
Simplify 0.9x + 1.26 - 2.3 + 0.1 * x to x - 1.04
add 1.04 to both sides
simplify 1.6 + 1.04 to 2.64
Answer: x = 2.64
