For perimeter you add up the two sides so 15 + 21 equals 36
Using proportions, it is found that the proportion
is used to determine the value of m.
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- We look at both tables, one show the distance in miles biked and the other shows the number of hours biked.
- From the tables, we can check that the relation is proportional, that is, in each hour, 11 miles are biked, as
. - Thus, the following proportional relationship between m and h is established:

- m is found when h = 7, thus, the proportion is:

A similar problem is given at brainly.com/question/24342347
Answer:
$39.1 in tax
Step-by-step explanation:
Well if the ring is $391, you multiply 10%, or .1, and you get $39.1 in tax.
edit: if rounded to nearest dollar, then its just $39