The answer to your question is 15(12)+40=?
15 being the per month fee, 12 being all 12 months, and 40 being the sign up fee. You can also put 15x12+40=?
Answer:
28.134 + 17.922 + 34.023 = 80.079
83.736 - 80.079 = 3.657
Lings relay team beat the champions by 3.657 seconds
I hope this helps please mark me Brainliest if it did! Thank you and have a nice day!
Given:

To find:

Solution:

Solving the equation (i):

Putting the value of x into the equation (ii):

Putting the value of y into the equation (i):

So, the value of 
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A squared plus b squared = c squared will help