Answer:
X=20
Step-by-step explanation:
She will need 8 more barbies, to reach a total of 12.
Hope this helps!
Answer:

Step-by-step explanation:
Notice that buy construction of a parallelogram,the angles
and
must equal each other. Then, based on the info given, we can write the following equation:

Then, angle
=
which is also equal to angle B
and since the addition of all internal angles of the parallelogram must equal
, then:

and therefore, since
and
must be equal, then:

Answer:
6.98%
Step-by-step explanation:
To find relative frequency we divide frequency with the total number participants in that age bracket
Total number of participants age 10-19=172.....................given in the table
The frequence for those who ski at age 10-19=12---------------given in table
Relative frequency= 12/172 = 0.0697
Expressed as a percentage= 0.06976×100 =6.98%
#6 80, 162.5
#7 .375, .4 repeating