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?

Question

(1 point)
Responses

50≤s<100
50
≤
𝑠
<
100
50 less than or equal to s less than 100

100≤s<140
100
≤
𝑠
<
140
100 less than or equal to s less than 140

100<s<140
100
<
𝑠
<
140
100 less than s less than 140

100<s≤140
100
<
𝑠
≤
140
100 less than s less than or equal to 140

Answer 1

The shipping rate of $4 applies for customers spending between $100 and under $140. Therefore, the correct interval is:

100 ≤ s < 140.

This means that the domain interval for which the shipping rate is $4 is:

50≤s<100 100≤s<140 100<s<140 100<s≤140.