Answer:
The first answer.
Step-by-step explanation:
The first answer.
What was the temperature of the air?
'was 2C warmer than the surface of the ice'
warmer than= +2c
Temp. of ice=-2c
-2c+2c=0
Answer:
20
Step-by-step explanation:
25 + 7x = 165
25 + 7(20) = 165
25 + 140 = 165
Answer:
40
Step-by-step explanation:
-8*-5=40
two negatives equal a positive
Answer:
-38
Step-by-step explanation:
y=2
z=-17
yz-y^2
(2)(-17)-(2)^2
-34-4
-38
Answer:
54x^2 + 10x
Step-by-step explanation: