At any given time of the day, the length of your shadow is proportional to your height. suppose a person who is 81 inches tall casts a shadow that is 94.5 inches long. another person in the same place casts a shadow that is 84 inches long. how tall is the second person?

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25

Emmanuel added 888 links per minute to his chain mail. allesia started 202020 minutes after emmanuel and added 131313 links per minute to her chain mail. how long had emmanuel worked when allesia caught up to him, and how many links had he added?