Answer:
170 square feet
Step-by-step explanation:
Marc has walked 42 % of the journey
<h3>How to calculate the percentage ? </h3>
The total miles is 50 meters
Marc has walked for 21 meters
The percentage he has walked can be calculated as follows
= 21/50 × 100
= 0.42 × 100
= 42
Hence the percentage of mile Marc walked is 42%
Read more on percentage here
brainly.com/question/20340402?referrer=searchResults
#SPJ1
Answer:
(a + b) and (a - b)
(2,-16) should be the answer