Answer:
7
Step-by-step explanation:
Formula=area of base x height / 3
A= ( 3 x 1 ) x 7 / 3
A= 3 x 7 / 3
A= 21 / 3
A= 7
2a+4(7+5a)
Distribute 4 into 7 and 5a
2a+28+20a
Combine like terms
Final Answer: 22a+28
Step-by-step explanation:
4x 3.5 + 4x 2.3
14 + 9.2
= 23.2
I think that the answer is 3Y+30. I hope this helps!!! :)
I might not be right but i think it’s 104
