Astudent cost for last semester at her community college was 2000.she spent $220 of that on books. what percent of last semester college costs was spent on books? ?

The coordinates r(1, -3), s(3, -1) t(5, -7) form what type of polygon? a right triangle an acute triangle an equilateral triangle an obtuse triangle

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?

John has 1/2 pound of oranges to share with julie. if they share the oranges equally, how much will each of them have?