He Sale flyer for cereal at a local grocery store states: Cereal 3 for $7.65 or $2.69 How much is the unit price if you buy using the 3-box deal?

$2.55

Step-by-step explanation:

He Sale flyer for cereal at a local grocery store states: Cereal 3 for $7.65 or 1 for $2.69.

How much is the unit price if you buy using the 3-box deal?

The unit price for the 3 box deal is :

3 boxes = $7.65

1 box = $x

Cross Multiply

3 × x = 1 × $7.65

3x = $7.65

x = $7.65/3

x = $2.55

The unit price for the 3 box deal is $2.55

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)