The cost for shipping by the Boston Mailing Company is based on the amount that a customer spends. For customers spending under $50, the shipping rate is $10; for $50 to under $100, the shipping rate is $7; for $100 to under $140, the shipping rate is $4; for $140 and over the shipping rate is $2. What domain interval will have a shipping rate of $4?
(1 point)
Responses
100<s≤140
100 less than s less than or equal to 140
50≤s<100
50 less than or equal to s less than 100
100≤s<140
100 less than or equal to s less than 140
100<s<140
100 less than s less than 140
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1 answer
The shipping rate is $4 for customers spending from $100 to under $140. Therefore, the correct domain interval that corresponds to this shipping rate is:
100 ≤ s < 140
This means that the amount spent can be $100, and it can go up to, but not including, $140.
