Hope this helps with your questions :)
Answer:
21
Step-by-step explanation:
21
Answer:

Step-by-step explanation:
step 1
Find the units rate of the first glacier

using proportion

step 2
Find the units rate of the second glacier

using proportion

step 3
Find the difference

Answer:
21 squares
Step-by-step explanation:
6+5+4+3+2+1=21