The 42 students who play wind instruments represent 75% of the students who are in band. How many students are in band?

56 students are in band

Step-by-step explanation:

Since 75% is basically 3/4, you should find first how much people are in 1/4 or 25%.

You can do this by dividing 42 and 3

42 divided by 3 = 14

You can check your answer because there are 42 students who play wind instruments and 14 + 14 + 14 = 42

Then you add another 14 to 42 since the students who play wind instruments are only 75%

42 + 14 = 56

56 students are in band

d. 145*2 is 290 than the total angle is 360 then minus 290 then divide by two