1.) principal:1,000,000 rate:5% time period:5 months interest: ? 2.) principal:200,000 rate:7% time period: ? interest:7,000 3.) principal:50,000 rate: ? time period:1 year interest:4,000 4.) principal: ? rate:10% time period:120 days(1 year=360 days) interest:20,000 pa help naman