9 rolls* (3 cups of flour/ 27 dinner rolls)= 1 cup of flour.
1 cup of flour is needed to make 9 rolls~
8160 dived by 85 equals 96, 2880 divided by 30 equals 96, therefore she can make 96 necklaces
Given:
Angled formed by ray BA and ray BC is 90 degrees.
To find:
The equation of line that bisects the angle formed by ray BA and ray BC.
Solution:
If a line bisects the angle formed by ray BA and ray BC, then it must be passes through point B and makes angles of 45 degrees with ray BA and ray BC.
It is possible if the line passes though point B(-1,3) and other point (-2,4).
Equation of line is




Add 3 on both sides.


Therefore, the required equation of line is
.
The answer would be (x+2) (x+1)