Agroup of 18 people ordered soup and sandwiches for lunch. each person in the group had either one soup or one sandwich. the sandwiches cost $7.75 each and the soups cost $4.50 each. if the total cost of all 18 lunches was $113.50, how many sandwiches were ordered?

Two rigid transformations are used to map abc to qrs. the first is a translation of vertex b to vertex r. what is the second transformation? a reflection across the line containing ab a rotation about point b a reflection across the line containing cb a rotation about point c

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

Multiply. write your answer in simplest form. 3/8 x 5/7