180
This is because 12x5x3 = 180
The last table is linear (1/2, 1, 1.5, 2)
2980 round everything to the nearest tens and add with your head to get it
Step-by-step explanation:
Fifth is B
Sixth I think it is D.
Hope this helps...
Anything in the parenthesis will go first cause they bit greedy so
(14+7)=21 then you have (8+7)=15
so you do
8x21=168 then + 15 = 183