9. There are 90 students in the choir. A special show requires 20% of the
students to dance as well as sing.
How many of the choir members will
dance?
A
70 students
B
45 students
20 students
D
students

D. 18

Step-by-step explanation:

change 20% to decimal by dividing by 100.

20/100 = 0.20

Now multiply by 90.

90 x 0.20 = 18

about 0.75 hours

step-by-step explanation:

3,6 and 7.

step-by-step explanation:

a) unit place of 37 is 7

so the unit place of cube of 37 will be

7³= 343=3

the answer is 3.

b) unit place of 56 is 6, so the unit place of cube of 56 will be

6³= 216=6

the answer is 6.

c) unit place of 133 is 3, so the unit place of cube of 133 will be

3³= 27= 7.

the answer is 7.