Since 1000ml is 1L, 100 ml is 1/10L.
So 100ml costs 7p
And 400ml costs 28p.
The
blue curve represents the f(x) function while the orange curve represents the
g(x) function
f=g, if x<0 and f>g, if x>0
16. The open circle is excluded and closed is included.
x≤-6
x>2
17. The open circle is excluded so the inequality would be: -3<x<2
You do 9/10. Which here it only fits once. So this is 1 1/10. The other one fits 3 times. So its 3 1/10.
If you want the subtraction also done its 1 4/10.