The ferry family rented 50 chairs for $150. which expression can be used to find the cost per chair?

Step-by-step explanation:

Given : The Ferry family rented 50 chairs for $150.

To Find: Which expression can be used to find the cost per chair?

Solution:

Let the cost of 1 chair be x

Cost of 50 chairs = 50 x

Since we are given that the cost of 50 chairs is $150

So,

Hence The expression can be used to find the cost per chair is  

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40