Answer:
34a + 12
Step-by-step explanation:
12a + 6a + 8 + 10a - 4 + 6a + 8
combine like terms
12a + 6a + 10a + 6a
and 8 + 8 - 4
34a + 12
X-15+5-5
x-10-5
x-15
There are 15 less people after the second stop on the bus than there were before the 2:30 stop.
Answer:
The answer for 18 is 175 (use khan academy)
Step-by-step explanation: base1 + base2 (times) height divided by 2