The USDA pays schools for each lunch served. As of the 2014–15 school year, it paid $2.98 for each free lunch,
$2.58 for each reduced-price lunch, and $0.28 for each full-price lunch.
If f = the number of free lunches served, r = the number of reduced-price lunches served, and p = the number of
full-price lunches served, write an algebraic expression that shows the total amount each school receives in
per-meal reimbursements.