Aradio station is giving away tickets to a play. they plan to
give away tickets for seats that cost $10 and $20. they want to
give away at least 20 tickets. the total cost of all the tickets
they give away can be no more than $280.

Step-by-step explanation:

Let x be the number of $10 tickets the radio station gives away and y is the number of $20 tickets which the radio station gives away.

Number of tickets:

At least 20, so

Cost:

x tickets for $10 each cost $10x

y tickets for $20 each cost $20y

Total cost:

$(10x+20y)

The total cost of all the tickets they give away can be no more than $280, so

We get the system of two inequalities:

the best buy, is the 4- kilogram bag of lollipops for $18.40.

step-by-step explanation:

i found my answer by dividing the cost of each bag by their respective weights.

14.88 divided by 2 = 7.44

17.29 divided by 3 = 5.77

18.4 divided by 4 = 4.6

24.4 divided by 5 = 4.88

by this, i found that the 4 kilo bag is the best buy.

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

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.