120 students have maths or science next lesson.
there are 12 more boys than girls altogether.
the ratio maths : science = 2: 3
half as many girls have maths as have science.

the  office resources  are the human, physical and financial  resources  which are utilized for performing all the activities in order to achieve the organizational objectives.

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answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,