11.

April is going to the bakery to purchase donuts and cinnamon rolls for the office personnel. She must purchase at least 30 items. She has collected only $30, so total cost must be no more than $30. If d represents donuts that cost $0.75 each and r represents cinnamon rolls that cost $1.25 each, which system of inequalities can be used to represent the region for the number of donuts and cinnamon rolls April could purchase?

A.d + r ≥ 30
0.75d + 1.25r ≤ 30

B. d + r ≥ 30
1.25d + 0.75r ≤ 30

C. d + r ≤ 30
0.75d + 1.25r ≥ 30

D. d + r ≤ 30
1.25d + 0.75r ≥ 30
Please answer quickly :)

The system of inequalities that can be used to represent the region for the number of donuts and cinnamon rolls April could purchase is $0.75d + $1.25r ≤ $30

April cannot spend more than $30. Thus, the inequality sign that would be used is ≤ (the less than or equal to sign).

April wants to purchases two items, cinnamon rolls and donuts. The donuts cost $0.75 per dollar and cinnamon rolls cost $1.25 per dollar.

The total amount April can spend on donuts = $0.75 x d = $0.75d

The total amount April can spend on cinnamon rolls = $1.25 x r = $1.25r

The sum of $0.75d and $1.25r has to be less than $30

This can be represented with this inequality: $0.75d + $1.25r ≤ $30

A similar question was solved here: https://brainly.com/question/18649886?referrer=searchResults