ANSWER

EXPLANATION
We want to find the value of a for which the binomial, 2a-1 is smaller than the value of the binomial 7-1.2a by 7.
This means that, when we subtract 2a-1 from 7-1.2a, we should get 7.

Expand:

Group similar terms:


Divide both sides by -3.2,


Answer: 864
Step-by-step explanation:
mulitiply all
-10 and -2
Because -10-2= -12 and -10 x -2 = 20
Hope this helps :)
Answer:
2.94
Step-by-step explanation:
SA
Area of one plane moultyply by number of planes
0.7*0.7*6
=2.94