1/4 x 900 = 225.00
225.00 is the total
D=dog's weight
c=cat's weight
d=7c
d+c=72
sub 7c for d
7c+c=72
8c=72
divide both sides by 8
c=9
d=7c
d=7(9)
d=63
dog=63lb
Answer: the last one
Step-by-step explanation: because 7 times 24 equals 168 and x would be 21 so 21 times 8 equals 168.
Option D:
The length of LJ = 3.5
Solution:
In the triangle LJK,
LK = 9, ∠K = 23°, ∠J = 89°
To find the length of LJ:
<u>Law of sine: </u>
A, B, C are the angles of the triangle and
a, b, c are the sides of the triangle.

Here for ΔLJK,
The side opposite to angle L is <em>l</em>.
The side opposite to angle J is <em>j</em>.
The side opposite to angle K is <em>k</em>.

Take only two sides.






LJ = 3.5 (approximately)
Option D is the correct answer.
The length of LJ = 3.5.