Answer:
3x(4x+5y)
Step-by-step explanation:
and yh.........
If 3 is the bold number then the answer is D. <span>#TeamAlvaxic</span>
The number of questions in the test is 30
Step-by-step explanation:
Let's call the total number of questions in the test N.
We know that Laura answered 27 questions, and these 27 questions represent the 90% of the test.
Therefore, we can say that 27 is the 90% of N.
Re-writing the percentage as a fraction,

This means that:

And now we can solve for N to find the number of questions in the test:

Learn more about percentage:
brainly.com/question/82877
brainly.com/question/1834017
#LearnwithBrainly
1/2 in simplified term
Step-by-step explanation: