Two models. R1 and R2, are given for revenue (in bilions of dollars) for a large corperation: Bsth miodeis are estirtates of revenues for 2015 throuph 2020 , where r - 15 correspsendi to 2015 . R1=7.24+0.29t+0.02t2,R2=7.24+0.1t+0.01t2 Which model projects the greater revenue? The model R1 projects greater revenue than R2. The model R2 projects greater revenue than R1. The model R8 projects the same revenue as R2. How mach more total revenue does that medel project over the sx-year period? (fiound your arswer to three decimal places.) x billion