I don't think it's a proportional relationship because it doesn't go the origin...im not sure,Let me know
Hey There!! ~
The answer to this is: the upper bound for the length is
Lower and Upper Bounds
The lower bound is the smallest value that will round up to the approximate value.
The upper bound is the smallest value that will round up to the next approximate value.
Ex:- a mass of 70 kg, rounded to the nearest 10 kg, The upper bound is 75 kg, because 75 kg is the smallest mass that would round up to 80kg.
Here , A length is measured as 21cm correct to 2 significant figures. We need to find what is the upper bound for the length . let's find out:
As discussed above , upper bound for any number will be the smallest value in decimals which will round up to next integer value . So , for 21 :
⇒ 
21.5 cm on rounding off will give 22 cm . So , the upper bound for the length is
Hope It Helped!~
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Bob had 32 sweets in total but decided to give 15 to his friend Olivia. How many sweets does Bob have left?
Bob went to the shops and bought 32 pencils, but he realised he didn't have enough money, so he put 15 back, how many pencils did Bob buy in the end?
Answer:
28 Strips
Step-by-step explanation:
Total Ribbon Length = 4m
First, we convert the total length to cm for ease of calculation.
1m = 100cm
4m =4 X 100cm =400cm
Total Ribbon Length = 400cm
Length of Strips=14cm
Number of Strips that can be cut
= Total Ribbon Length ÷ Length Per Strip
=400 ÷ 14 = 
A total of 28 strips can be cut with a leftover ribbon of 8cm.