Five people were asked about the time in a week they spend in doing social work in their community they said 7,10,13,20,15 hours respectively. which methametical concept is used in this question??

what value is depicted in this question??​

Mean time and 13

Step-by-step explanation:

Given that

here is a five people and they spend the work in 7,10,13,20,15 hours respectively

Therefore here the concept i.e. used is average time or the meantime

And, this can be determined below:

= Sum of observations ÷ number of observations

= (7 + 10 + 13 + 20 + 15) ÷ 5

= 13

3x + 18 = 147°

step-by-step explanation:

3x + 18 = 147°, because the value of the central angle is equal to the value of the arc formed by it.

i hope i you.

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

i hope this answer you! if you have any further questions or concerns, feel free to ask! : )

step-by-step explanation:

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