Can someone me out with 11 and 12 ?

Well, for 11, it is discrete, because you can see points which are discrete, each point is defined in that particular moment, and for 12 it's continuous, because you can see the full line, without any breaks whatsover.

Hope this helps!

f-1(x)= cube root of 19x squared/x

step-by-step explanation:

whatever you can spend with $11.53 or under.

step-by-step explanation:

20 - 8.47 = 11.53. take away the money he used for lunch from the starting amount of 20.