14. IQ SCORES FOR CHILDREN The scores of a reference population on the Wechsler Intelligence Scale for Children (WISC) are normally distributed with u = 100 and 0 = 15. A school district classifies children as
"gifted" if their WISC score exceeds 135. There are 1300 sixth-graders in the school district. About how
many of them are gifted?

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

wedfghjkl;

tyuiop[]ghjkl;

step-by-step explanatio89