Combine. Note that one positive and one negative = one negative
-2.1 + (-5.9) + (-3.7) = -2.1 - 5.9 - 3.7 = -11.7
-11.7 is your answer
hope this helps

At this point in time, you can use a technique called cross-mutiplication, where you say that

, and

at this point in time, you can devide each side by 8 and solve
Answer:
454
Step-by-step explanation:
Answer: 60cm
Step-by-step explanation:
6 times 2 is 12
12 times 5 is 60