Answer:
-3.125
Step-by-step explanation:
Your answer is three out of the people in your school.
1. 50 + 20x = 240
2. 85% so more than 75%
3. 25.9% so about 26%
Hope this helps and please consider marking branliest if this helped you
Answer:9a^2+18a-72
Step-by-step explanation:
9(a+1)^2-81
9(a+1)(a+1)-81
Open brackets
9(a^2+a+a+1)-81
9(a^2+2a+1)-81
9a^2+18a+9-81
9a^2+18a-72
