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Which ordered pair would form a proportional relationship with the point graphed below?

A.(-10, 30)
B.(30.-15)
C.(-30, 10)
D.(80.-30)

5500 dollars is placed in an account with an annual interest rate of 6.5%. to the nearest tenth of a year, how long will it take for the account value to reach 19700 dollars?

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x