I think yes because triangles have right sides meaning yes the triangle does have 9,12,15 given sides.
Answer:
Yes because she is asking students who love dance so much that they took an advanced dance class.
Step-by-step explanation:
22 + (30 - 4) divided by 2
30 - 4 = 26
26/2 = 13
22 + 13 = 35
35
18 + (22 - 4) divided by 6
22 - 4 = 18
18 divided by 6 = 3
18 + 3 = 21
21