Which of these are measures of central tendency that can be found for this list of 11th-grade students' heights?
check all that apply:
4'9", 5'3", 5'4", 5'7", 5'3", 5'9", 6'0", 5'4", 6'0", 6'1", 5'7", 5'5", 4'5"
a. mean
b. range
c. mode
d. median
e. standard deviation

The correct answers are Mean, Median, and Mode.

step-by-step explanation:

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: