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If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula , what is the temperature in celsius corresponding to r degrees rankine? a. 9/5(c - 273) b. 9/5(c + 273) c. 5/9( c - 273) d. 5/9( c + 273)