Can you help me with the plugging in question 8 on pg. 29?
Yep, can do!
The plugging in here is just picking numbers for 
and 
that work in the first equation. What multiples of 2 and 3 add to 11? Well, the first one that comes to mind for me is 2(1) + 3(3) = 2 + 9 = 11. So let’s say 
and 
.
You can use your calculator here so now just evaluate 
and see which answer choice lines up. Turns out 
, so that’s the answer.