Add the following expression

Use the unpaid balance method to calculate the finance rate on joanna's credit account. if last month's balance was 15 she made a payment of $375. she bought hiking for $120, and she returned a jacket for $140. assume the interest rate of 2%

Aboy has 100 rupees he want to buy how many things if the cost one is 1/2 rupee each and biscuit is 3 rupees and cake is 5 rupees each there want to be 100 things equal 100 rupees​

If the diagonals of a parallelogram are equal then show that it is a rectangle