Due to the limited number of notes that can be played on an antara, early musicians’ most likely worked in groups, coordinating the timing and pitch of their instruments to extend the range of sounds produced. If the writer were to delete the phrase “coordinating the timing and pitch of their instruments” from the preceding sentence, the sentence would primarily lose

The slope of a linear equation is equal to the change in the value of the dependent variable divided by the change in the value of the independent variable. in this problem, the dependent variable is the profit while the independent variable is the worker's average pay. if the profit is said to increase by 1500 when worker's average pay decrease by 450, the slope is equal to 1500/(-450)=-3.33

Icannot see the passage but i’m guessing off of what the passage would be that c is the only correct answer.