Ok first do you know how to find the area or a triangle and a rectangle
Answer:
$56.82 US dollars
Step-by-step explanation:
Set up a proportion where x is how many US dollars there are in 50 Euros:
= 
Cross multiply and solve for x:
0.88x = 50
x = 56.82
So, 50 Euros is approximately equal to $56.82 US dollars
Answer:
72 dollars I believe
Step-by-step explanation:
-ab-a=-(-4)(-5)-(-4)=-20+4=-16
so the answer is b