Answer:
Step-by-step explanation:
If
then
by combining like terms. (I'm thinking you might have mistyped the problem because this representation is weird).

Answer:
Step-by-step explanation:
So we are assuming only the times listed count toward telling us how long the game was, so you just add the three numbers together. 155, 175 and 30
we have

the solution is the interval -------> (3,∞)
therefore
the answer in the attached figure
Answer:
495 cm
Step-by-step explanation:
Remark
When you do the subtraction, whatever is left (the decimal part) is the length in cm when multiplied by 100.
Solution
Remaining rope = starting length - what was used.
Remaining rope = 6.15 - 1.2
Remaining rope = 4.95 meters
Answer
The remaining rope = 4.95 * 100 = 495 cm