Using the percentage concept, it is found that 40% of Alberto’s income is used to pay for his rent and groceries.
<h3>What is a percentage?</h3>
The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:

In this problem:
- Alberto’s monthly income is $3,200, hence b = 3200.
- He spends 896 + 384 = $1280 in rent and groceries, hence a = 1280.
Then, the percentage is given by:

More can be learned about the percentage concept at brainly.com/question/10491646
Answer:
Step-by-step explanation:
1: 7/6
2: 3/2
3: 0.000288
4: six tenths
Answer:
False
Step-by-step explanation:
Because the gcf of 10 and 18 is 2
Answer: when you graph it, it opens down so it will have a maximum
Step-by-step explanation: