Answer:

Step-by-step explanation:



Qué es?
<span> <span>A.</span>Es una grapadora.</span><span> <span>B.</span>Es una puerta.</span><span> <span>C.</span>Es un mapa.</span><span> <span>D.</span><span>Es un cartel.</span></span>
Hi there!

We can solve for x knowing that the sum of interior angles in a triangle is 180°.
The square at the bottom indicates a right angle, or 90°. Therefore:
180 = 90 + x + (x + 10)
Combine like terms:
180 = 100 + 2x
Subtract 100 from both sides:
180 - 100 = 2x
80 = 2x
Divide both sides by 2:
x = 40.
Answer:

Step-by-step explanation:
Out of a total of 1,
went to the fair and
OF THOSE, bought atleast one book.
To find the fraction of students who bought at least one book, we will multiply both the fractions. That is the answer. Shown below:

Answer is 