Question 24 A teacher asked some of her students how many siblings they have. The results are displayed in the dot plot.
I.
10
How many students did she ask?
А
7 students
B
10 students
C
21 students
D
41 students

C, 21 students

Step-by-step explanation:

if you count out each dot plotted it equal 21 people

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°

its 4 because 2 times 2 is 4, if you double the number two you get four