This is the concept of commercial arithmetic, we are required to calculate the amount that Kerri contributes towards her health insurance if the total annual contribution is $6,486 and the employer pays 80% of this; percentage insurance that Kerri pays is: 1000-80 =20% Annual premium= $6,486 Amount paid by Kerri will be: 20/100*[total amount paid] 20/100*6,486 =$1,297.2 The answer is $ 1,297.2
As an expression, this is: 222c - 15 = c If you want to solve it, add 15 to each side to get: 222c = c + 15 Subtract c from each side: 221c = 15 Divide each side by 221: c ≈ 0.0678733 Hope this helps!
