Alix has x dollars per week available for lunch. she spends $3 on lunch every weekday. write an algebraic expression to represent how much money she has left over at the end of the week.

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Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.