Bank a charges a $10 service fee and $0.10 for each check written. bank b charges $8 and
$0.20 for each check written. how many checks does a person need to write each month for
the two banks to charge the same amounts in fees?

A person needs to write 20 checks each month for bank A and B to charge the same amount of fees ($12).

Step-by-step explanation:

let number of checks be represented by c

Bank A equation = 10 + 0.10c

Bank B equation=  8 + 0.20c

Equate the above equations to each other and solve for c

10 +0.10c = 8 + 0.20c

Group numbers on one side and the variables on the other;

10 - 8 = 0.20c - 0.10c

2 = 0.10c

Divide both sides by c to get c = 20

If you plug in 20 for c in each equation, you'l get $12 in total fees for each bank, making their fees equal.

Therefore , a person needs to write 20 checks each month for bank A and B to charge the same amount of fees($12)

4th option is correct xy=-10

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the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.