Make sure you show all your work so I can give you partial credit

Using Covered Interest rate Parity,
Forward rate = Spot Rate x [1 + rf x (n/360)] / [1 + rd x (n/360)]
The forward rate should be = 142 x [1 + 0.07 x (90/360)] / [1 + 0.09 x (90/360)] = 142 x 0.99511 = 142.3056
Since the forward rate calculated is different from the actual forward rate, there is an arbitrage opportunity.

Step 1:

Borrow $1,000,000 at 9% for 90 days, and enter into the forward contract for the rate of  ¥$ 139.
Amount owed after 90 days = 1,000,000 x (1 + 0.09 x 90/360) = $1,022,500

Step 2:

Convert the borrowed amount to Yen using the spot rate
After converting, amount in Yen = 1,000,000 x 142 =  ¥142,000,000

Step 3:

Invest the converted amount at the Japanese rate for 90 days
Amount at the end of 90 days = 142,000,000 x (1 + 0.07 x 90/360) =  ¥144,485,000

Step 4:

Convert the amount back to dollars usinng the forward rate.
Amount after conversion = 144,485,000 / 139 = $1,039,460.43

Step 5:

Pay off the borrowed amount
Profit in 90 days = 1,039,460.43 - 1,022,500 = $16,960.43

Profit today = 16,960.43 / (1 + 0.09 x 90/360) = $16,587.22

For immediate profit, $16,587.22 can be borrowed today at 9% and repaid with the profit in 90 days.