The school orchestra has 15 percussionist 15 brass instruments 35 strings and 35 woodwinds select a portion of the instruments that are strings

constants mean the stopped points or the points on a graph that nothing is changing, hope this

step-by-step explanation:

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

what