I’m pretty sure that the one you marked is correct
Step-by-step explanation:
To calculate a slope, we need to apply: 
Applying formula to each slope:

So, as you can see, there are equal pair of slopes, meaning that they are parallels, which<em> demonstrate that it's actually a quadrilateral figure.</em>
You need to clarify whether you need the x or the y or both
The anser is 50 becasue if u had an mini 1 above 1 that would mean u had to multiply it 5x10 2 time fro example 5x20 = 100
Step-by-step explanation:
BODMAS
B-brackets()
O-of(multiplication)×
D-division÷
M-multiplocation×
A-addition+
S-subtraction-