Asurvey of a random sample of students found that 14 preferred
country music, 16 preferred rock, 5 preferred classical, and 10
preferred pop. there are 630 students in the school. predict how many
more students in the school prefer country or rock music than prefer
classical music. 7.sp.2

  350

Step-by-step explanation:

Given : A survey of a random sample of students found that 14 preferred

country music, 16 preferred rock, 5 preferred classical, and 10

preferred pop.

Sample size :

Number of students prefer country or rock music= 14+16=30

Now, the proportion of  students prefer country or rock music =

Total students in the school= 630

Predicted number of students in the school prefer country or rock music=

The proportion of  students prefer classical music =

Predicted number of students in the school prefer classical music=

Now, the predicted number of students in the school prefer more country or rock music than prefer  classical music = 420-70=350

i believe the answer to be 48

step-by-step explanation:

question

given the diagram below, what is md?

the sum of the interior angles is 360°

take away from 360 the sum of the knows angles and you will have the angle d.

360 - 108 - 108 - 72 = 72°