Answer:
45 and 47
Step-by-step explanation:
99 degrees warmer because since -27 a negative number you have to add 27 to get to 0 so Alaska is then 72 degrees which is a positive number so you add 72+27 and get 99
Answer is very straightforward:
If you got 49 students and require at least 9 square feet of floor space for each of them, the total minimum floor space you need would be: 49 x 9 = 441 square ft.
Hope it helps!
In order to find the equivalent expression, let's use the following property:

In other words, when subtracting a negative number, we can just add the corresponding positive number, that is, switch the two negative signs for a positive sign.
So we have that:

Therefore the correct option is D.