Answer:
Use the formula SA=2×length×width+2 length× height+2×height×width. With this I believe your answer should be 13.5. Sorry if it's wrong since the answer choices don't line up but thats the only way it makes sense for me.
The easiest way to do this is to put each term in the numerator over the denominator and do the division/reducing for each one. Like this:

. The first term reduces to

, the second to

, and the third to 3. Putting them all together with the signs in between we have
1st,2nd,3rd,4th that is your answer
Answer:
7.3 answer
Step-by-step explanation:
x=1.7
now
3x+2.2
3×1.7+2.2
7.3