Answer: A
Step-by-step explanation: A is the statistical question since it complies many test scores together
Answer:
12 and 30
Step-by-step explanation:
I think the best answer is 12 and 30.
I hope it will help u...
Writing the equation that governs this situation:
-3C - (2.5C/hr)x = -18C
Simplifying, -3 - 2.5x = -18, or 3 + 2.5x = 18
Combining like terms: 2.5x = 18-3 = 15
Then x = 15/2.5 = 6. The temp. will reach -18C after 6 hours.