Gabriella bought 9 shirts for a total of $90. Tee shirts cost $8 and long sleeve shirts cost $14.
How many of each type of shirt did she buy?

Gabriella bought 6 t-shirts and 3 long sleeve shirts.

Step-by-step explanation:

$8 x 6 = $48

$14 x 3 = $42

48 + 42 = $90

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: