1/8 of tony's books are mytery books. he has 3 mystery books. how many books does tony have in all?

From the given situation above, it is given that the total number of books that Tony has, 1/8 of it are mystery books and he has 3 mystery books. To simply solve this we multiply 1/8 by 3 which gives us the result of 3/24. Therefore, the total number of books that Tony has is 24. 

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )