4. “Find the area of this circle. Use 3.14 for x.(round to the nearest hundredth as well)” I WILL GIVE!

A = 153.86 ft²

Step-by-step explanation:

The area (A) of a circle is calculated as

A = πr² ( r is the radius )

   = 3.14 × 7² = 3.14 × 49 = 153.86 ft²

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: