I hope i dont any mistake :p tell me if u dont understand :)
It depends on the question . What is the question asking about?
Answer:
y = 12
Step-by-step explanation:
Complementary angles sum to 90 , so
3y - 1 + 4y + 7 = 90
7y + 6 = 90 ( subtract 6 from both sides )
7y = 84 ( divide both sides by 7 )
y = 12
100% 9/12 the answer is 25% which leaves you with 75%
Answer:it is
Step-by-step explanation: