An astronaut visited mars. his weight on earth was 180 pounds, and his weight on mars was only 72 pounds. he removed a rock with a weight of 16 pounds on mars. what is the weight of the rock on earth? a. 1.4 pounds c. 6.4 pounds b. 4 pounds d. 40 pounds

Answer: d. 40 poundsStep-by-step explanation: let e equal the number of pounds weigh on Earth and m equal the number of pounds weighs on Mars.so72m=180e1m= 72m/72e= 180/72 = 2.51m=2.5e16m=1 x16e= 16 x 2.5e= 40so therefore, 16m=40eI hope this helps