Its the first one
Plugging in x = -2 and y = -1:-
5(-2) = -10
11(-2) - (9)-1) = -22 + 9 = -13
Answer:

Step-by-step explanation:
Using the rule of exponents
×
⇔
, thus
×
=
= 
Answer:
Step-by-step explanation:
If it dropped 2° every hour then after 3 hours it would drop (2*3=6) 6°
1/4 of 2 is 0.5 this will be added to the 3 hours to get the answer for 31/4 hours
6 + 0.5 = 6.5°