Amanda read 15 pages of her 150-page book in 2 hours. at this rate, how long will it take her to read the entire book? 2 hours 5 hours 10 hours 20 hours

20 hours

Step-by-step explanation:

Given: The number of hours taken by Amanda to read 15 pages = 2 hours

Using unitary method, the number of hours taken by Amanda to read 1 page = hour

Now, the number of hours taken by Amanda to read 150 pages = hours.

Hence, she takes 20 hours to read the entire book .

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: