Answer:
Step-by-step explanation:
The 15th arrangement will have both a blue and red ribbon
I think its 80 m3 or either 18 m3
Answer:
0
Step-by-step explanation:
adding -7 to 7, since they are both constants (no variable) gives you 0. Adding -5x and 5x since they both have an x term gives you 0x also written as 0 (0*any number is 0). this gives you a final answer of 0
