Answer:
Step-by-step explanation:
We can first solve for the face diagonal. That is 
. Notice this will form a right triangle with the vertical side. We get that the face diagonal = 
. Now, we can use Pythagorean theorem again to get the straw length:
where s = the straw length.
We can solve that s = 
Answer: B. Subtract 28 from both sides
Explanation: You need to subtract first because the variable needs to be by itself.
Answer:
24
Step-by-step explanation:
6.21+6.21=5.7+5.7=23.82
23.82 rounds to 24
(perimeter is all of the sides combined)
Option C and D is correct .....
3x - 18 = 42
3x = 42 + 18
3x = 60
x = 60/3
x = 20
