Answer:
its 23
Step-by-step explanation:
its 12+11 because two negatives make a positive
He could have 30 dimes and 13 quartars
Answer:

Step-by-step explanation:
Given
Length of string = x inches
Required
Determine the length in yards
Represent the equivalent length with y
Such that

Divide x by 36 to get equivalent in yards


Hence, the equivalent in yards is 
Answer:
pls just give me these points my account got hacked and I have -47 points when I had 570
Step-by-step explanation:
Answer:
343 meters.
Step-by-step explanation:
Since, both the shapes are similar, their sides are also similar.
21 / 24 = 49 / w
1 / 7 = 49 / w
w = 7 * 49
w = 343