For numbers 12-15. John opened a savings account in a bank with initial deposit of P 10.000. Every month he saves P 4.200.
12. Which of the following algebraic expressions will show the total saving of John in terms of month?
A. 4200 + 10000.X
C. 1000 + 4200x
B. 4200 + 0.1000x
D. 10000 + 4200x
13. What does x represent in the algebraic expression?
A. Number of Months
C. Initial deposit
B. Number of weeks
D. Total savings
14. What is the total saving of John after 10 months?
A. 42.000
C. P 420.000
B. P 52.000
D. P520.000
15. What is the total saving of John after 17 months?
A. P17,000
C. P 81,400
B. P 71,400
D. P 18.000​