Since there are 4 packs of pencils with 12 pencils in each pack, you want to multiply 12 by 4 which equals 48 pencils in total. Because there are 25 students, each student can have 1 pencil. They can't have 2 pencils each though since 25 times 2 is 50 and 48 is less than 50.
The Triangle Sum Theorem states that the sum of the angles of a triangle equal 180°. Therefore, 45° + 62° + k = 180 107° + k = 180 k = 73° The value of k is 73°
