Answer:
a is 2x+2x and 4x
b is 6(7y-4) and 6*7y-6*4
66 yards is greater, because in the metric system 1 yard= 3 feet. 66 yards is equal to 198 feet. Therefore, making 66 feet greater than 180 feet.
Answer:
i's 20 because it seems that it is the most successful
Answer:
-360
Step-by-step explanation:
1. Add 9 + 21 and subtract 9 - 21
2. That would be (30)(-12)
3. Then multiply 30 x -12
4. You get -360
