10book=30mins
divide 10
1book=3mins
time=(time to read 1 book) times (number of books)
time to read 1 book=3 mins
15 books
15 books=15 times 3mins
15books=45mins
45 mins
2.4cm is the tangent of A
<span>the circumstances of a circle with a diameter of 30 centimeters
</span>The answer is 94.2 centimeters
<span>
Hope it helps c:</span>
Math uses numbers and equations, and science requires the scientific method and experimentation
