Answer:
The scale factor is 4
Step-by-step explanation:
Divide one of the sides on the larger shape with the corresponding side on the smaller shape. So if you choose the top one you would to 40/10 which is 4.
Answer: I think b=5
Step-by-step explanation:
Answer: 6,000
If the value before the one you are rounding to is 5 or greater then round up. If it is 4 or less round down.
Well you could do 5 3/8 plus 3 1/4 and your denominator 4 can become a 8 so multiply 4x2 to get 8 and 2x1 to get 3 2/8 and add that to 5 3/8 to get the sum of 8 7/8
