The Garza family enrolled their 4-year old, 3-year old, and infant in daycare for $2800 per month. The Martinez family enrolled their 4-year old and twin 3-year olds in the same daycare for $2650 per month. The Richards family spends $3000 per month for their 3-year old and twin infants to attend. Define your variables, and write a system of equations (in the order in which read them) that could be used to solve for indivdual the cost per child.