Answer:
I'm pretty sure it is C.. that's the way I learned it.. you change the signs opposite
The correct answer would be +13 since 90 is positive and the greatest number
Answer:
x=99 dollars
Step-by-step explanation:
6 ppl for movies --> each $13 so 78 Total dollars
Plus 7 snacks each are $3 so its 21
add $21 and 78 to get $99
1.09. You want to add all the numbers together which would give you 12 and divide that by how many numbers there are which is 11. So 12 divided by 11 would give you roughly 1.09 !
