Mari and rob are making a poster for the science fair . they need to figure out how much a rock that weighs 7 pounds on earth would weigh on mars .they know that they can multiply the amount the rock weighs on earth by 0.38 to find its weight on mars . circle the partial products mari and rob would need to add to find the product of 7 and 0.38. mark all that apply . a)0.7 b)0.56 c)2.66 d)2.1 e)0.38