exam
Maths Puzzle
Numerical Ability
Mike, louie and Joy can mow the lawn in 4,6, and 7 hours, respectively. What fraction of the yard can they mow in hour if they work together?
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exam Other Question
The average hourly wage (adjusted to 1982 dollars) was $7.66 in 1990 and $8.24 in 2002. (a) Find the equation of a line that passes through the points (1990, 7.66) and (2002, 8.24)
what is the absolute value of [ 2x-8] = 0
(the brakets are the absolute value symbols)