well first the complement I 90-19=71
and supplement is 180-19=161
Answer is A m^7/n^2 -----------------
Let its width be w and length= w+6
2(w+6+w)=52
4w+12=52
4w=40
w=10
Area=10*(10+6)=160
The answer is A, you can tell because if you multiply 4 by the numbers inside the parentheses you’ll get =12+24..hope that helped :)
Answer:
-8
Step-by-step explanation:
-21-(-13)
=-21+13
=-8 is the answer......
