Follow PEMDAS!
First E (exponent) so you'd do 2^2=4
Then S (subtract) so you'd do 3-4=-1
your answer is -1
5 I think.
Step-by-step explanation:
1. 311
2. 522
3. 603
4. 341.47826087
5. 221.558823
5b. All i did was divide the regular way or u could just put it in a calculator?
Choice A is one of the answers. Nice work. This is because x+x+x turns into 3x.
Choice D is the other answer because 2(x+1) + x = 2x+2+x = 3x+2. You can find this through trial and error. Or you could graph y = x+x+x+2 and y = 2(x+1)+2 to find that they are the same exact identical diagonal line. A non-graph approach would be to set up a table of values to see that the two tables are identical.