Answer:
Step-by-step explanation:12y ×4 =21
48y=21
Y=0.44
Mark brainlest if correct pls
Answer:
About 141 students would attend.
Step-by-step explanation:
423/3=141
Answer: 15
Step-by-step explanation:
Opposite angles of a cyclic quadrilateral are supplementary, so:

Answer: 300
Step-by-step explanation:
You get 3x + 4x, +4- -3,and +3 + 4