Answer:
1.mountains plains rivers
2. A
3.C
4.B
Step-by-step explanation:
yes
Answer: i think it’s no real solutions
Step-by-step explanation:
Answer:
Step-by-step explanation:
Use the formula Sum = (a + L)*n/2
The tricky part is n. That's the number of terms between 1 and 99 inclusive.
n = 99 -1 + 1 = 99
n = 99
a = 1
L = 99
Sum = (1 + 99)*99 / 2
Sum = (100)*99/2
Sum = 4950
I believe the answer is b because u need to combine like terms and 6c+2c+5c is 13c.
