Find the area of the circle with a circumference of 30
π
. Use 3.14 for
π
. Round to the nearest hundredth.

Area in in decimal form: _

Options:

circumference of the circle=2πr

30π=2πr

r =15

radius of the circle is 15 mm

area of the circle=πr²

=3.14×15²

=706.5 mm²

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: