A blank is usually multiplication because (1)1 means to multiply without any actual symbol, but on the other hand, addition, subtraction nor division will have a blank because their signs are different than multiplication which has many sorts of ways to multiply in any way that makes you comfortable.
63.8, subtract 24.2 from 90 to get your answer since complementary means 90 degrees and supplementary means 180 degrees. Hope this helped! :)
Im pretty sure that answer is four!
The sum of two odd numbers is 23+13. One way you could figure it out is to use your logic thinking! Hope this helps and I hope that you get this answer before the moderater deletes it! (They hate me! ☹️ I don't know what I ever done to them I just started today)
Pick a number: 5
Add 7: 5+7=12
Triple the result: 12*12*12=1728
Add 9= 1728+9=1737
Divide by 3 = 1737/3=579
Subtract original number = 579-5=574
Now pick a different number a do the same process
Hope that helps
