Eighteen could be in standard form 18 or expanded form 10 + 8.
You would put 8 where x is and -10 where y is and then you will do -10 to the second power, which you will get 100 and so you will get 104. The answer is
D) 104
16 x 3/8 so 16/1 x 3/8 = 48/8. 48 divided by 8 is 6. So 6 inches.
Y = 6
5y = 5 x y
5y = 5 x 6
5y = 30.
It is C. 30.
Hope This Helps You!
Good Luck Studying :)
