Hi!
A is the answer:⏬⏬⏬⏬⏬⏬⏬⏬
The distance around a triangle, better noun as de "perimeter of a triangle"
is the total distance around the outside, which can be found by adding together the length of each side.
Perimeter (P) = Length A + Length B + Lenght C
In this case, we know that each side measure 2 \frac{1}{8}81 feet, 3 \frac{1}{2}21 feet, and 2 \frac{1}{2}21feet but we have to rewrite each one of this mixed fractions as improper fractions:
2 \frac{1}{8}81 = \frac{16 + 1}{8}816+1 = \frac{17}{8}817
3 \frac{1}{2}21 = \frac{6 + 1}{2}26+1 = \frac{7}{2}27
2 \frac{1}{2}21 = \frac{4 + 1}{2}24+1 = \frac{5}{2}25
Then we just add all of them to find the perimeter:
 = \frac{17 + 28 + 20}{8}817+28+20 = \frac{65}{8}865
A: The distance around a triangle is \frac{65}{8}865feet
Doing (7x÷7) I think equals 1
Look at the pictures it explains the equation step by step tell me if you have any questions the answer is at the bottom
43:
Negative temperatures are basically the same as normal ones, although they go below zero, so they are still the same distance apart from zero, just on the left side of the number line.
To find the answer find the difference between 30.5°C and 0 (which is 30.5).
Next, find the difference between -122.2°C and zero (122.2)
Finally, add 122.2 + 30.5 to find the total distances from the zero combined for the full distances apart from each other.
(We add them because -122.2 to the left of zero, and 30.5 is on the right)
You should get 152.7 as your answer.
45:
I'm guessing since it is asking for the deepest point (-5315) from sea level (0), the answer is -5,315 feet
*Remember 5,315 is negative because numbers below sea level are all negative*
So the answer should be -5,315 feet deep. (I'm not sure how to show your work for that I'm guessing it is 0 - 5,315 at the slightest).
*Hope this all helped :)*