28 divided by 4= 7
7-3=4
answer: 4 notebooks left.

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Explanation:</h2><h2>
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In this problem we have the following data:

Speed, time and distance are related with the following formula:

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Speed: brainly.com/question/14095729
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Answer:
D. 5(x^2+5)
Step-by-step explanation:
5x^2+25
Viewing the two terms 5 is divisible by both
5X^2/5 +25/5
X^2+5
Therefore the equation will be represented by
5(x^2+5)
20 aahahahahahahHHajajajahaj ajajaja
Answer:
x=21
Step-by-step explanation:
The two angles form a straight line so they add to 180
6x+2+52 = 180
6x+54= 180
Subtract 54 from each side
6x+54-54 = 180-54
6x= 126
Divide by 6
6x/6 =126/6
x = 21