The loan proceeds will be given as follows: A=P(1+r/100)^n Plugging the values we obtain n=4 months= A=1000(1+12/3*100)^1 A=$1040 hence the proceeds will be: 1040-1000=$40
700a+1200r=1000000 (then plug in the a) 700(1000) +1200r=1000000 (simplify) 700000+1200r=1000000 (subtract 700000 from both sides) 1200r=300000 (divide by 1200 on both sides) r=250 250 pounds