I'm not sure I understand the question. Is this worded correctly?
Answer:
for x < 0 x^2 - 2
for x
0 2x + 1
Step-by-step explanation:
(2x-6) + 4(x-3) {distribute 4 out and expand problem}
2x+6+4x-12 {combine like terms}
6x-6 {your answer}
Teresa counted 2 leaves on May 1st and 9 leaves on September 1st.
The difference in the number of leaves is:
9 - 2 = 7
Hence, the number of leaves has increased by 7 units.