Answer:
i think
Step-by-step explanation:
4 or 1
The answer is called a <span>Wavelength Hope I helped!</span>
With perimeter, all you have to do is add all the lengths and widths together.
7.5 + 7.5 + 4 + 4 = 23
Answer : 23 m
Hope this helps, if not, lmk
Answer:
10 and 11
Step-by-step explanation:
Let the first integer be x.
Then the next one, since it's consecutive, must be (x+1).
The two equals 21. Thus:

Combine like terms:

Subtract 1 from both sides:

Divide both sides by 2:

So, the first integer is 10.
And the second integer is 10+1=11.
Might be wrong but y=2-2x