6. how much interest does $5,300 earn at a rate of 2.8% interest compounded quarterly, in
three months?

Which one ? is the answer and how to find this answer

Can you me find the slope! (30 points)

Long division setup showing an incomplete calculation. 12 is in the divisor, 6839 is in the dividend, and 5 hundreds and 6 tens is written in the quotient. 6000 is subtracted from 6839 to give 839. an unknown value represented by a box is being subtracted from 839. what number should be placed in the box to complete the division calculation?