elsianblixx elsianblixx 20-11-2021 Advanced Placement (AP) contestada Estimate the product of 78 x 42 = ________. Select the equation that correctly represents how to round each factor. (1 point) 75 x 45 = ________ 80 x 40 = ________ 75 x 40 = ________ 80 x 45 = ________