Simplify this expression: 16+28/2-6/10-4x2

Simplify 28/2 to 14

16 + 14 - 6/10 - 4x^2

Simplify 6/10 to 3/5

16 + 14 - 3/5 - 4x^2

Collect like terms

-4x^2 + (16 + 14 - 3/5)

Simplify

-4x^2 + 147/5

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:

4 puzzles in 3 hours

step-by-step explanation: