Answer:
16/15
Step-by-step explanation:

The two minus signs cancel, so the result is positive.
Answer: Read it to him again, and explain all the steps to him nice and slowly.
Answer:
spiner number 1
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
because in the periodic table nitrogen is 7, and oxygen is 16
Answer: 12 inches to 1 foot.
Step-by-step explanation: Well, there is 12 inches in 1 foot, so the last one if I'm not mistaken. knowing this, 100 / 12 = 8.33
100 inches per minute converts to 8.33 feet per minute.