Answer:
280
Step-by-step explanation:
what i did was just go step by step in what your teacher tells you to do but i am going to say this may be wrong.
The answer to "12x-(4y+7z) for x=9 y= 4 and z = 2" is 78.
Answer: 12
Step-by-step explanation:
One yard is three feet. So three times four is 12 because it makes four yards in total with each side being a yard.
He traveled 2080 miles after 4 hours. He covered 3640 miles in 7 hours with a constant speed, so we can calculate the speed: 3640/7=520 miles/hour. After 4 hours, he traveled 520*4=2080 miles.
