Answer:
30
Step-by-step explanation:
since the width is 20, there are 2 sides, so multiply by 2 and it's 40. Subtract 40 from 100 and you get 60. 60 is both lengths combined, so divide by 2 and you have 30 as your length. :)
Answer:4miles
Step-by-step explanation:2x4=8
(x-8)(x+8)
Difference of squares
Basically take the square root of 64 and place the answer into the two sets of parenthesis
25%
Step-by-step explanation: 50 is 25% of 200
