Use any systems method you like to solve this work problem.
must write equations.

nina can buy 3 sandwiches and 4 iced teas for $10.41. she can buy 1 sandwich and 3 iced teas for $5.12. find the cost for one sandwich and one iced tea. [answer must be a sentence with a proper label.]

Which expressions are equivalent to k/2 choose 2 answers: a k-2 b 2/k c 1/2k d k/2 e k+k

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

Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet