Answer: 548.8 square inches
Step-by-step explanation:
From the question, we are informed that a cereal box has a surface area of 280 square inches.
The surface area of a similar box that is larger by a scale factor of 1.4 will be gotten by multiplying 280 by the scale factor's square. This will be:
= 280 × (1.4)²
= 280 × 1.96
= 548.8 square inches
The answers are expressions:
(7b*3)+(7b*c)
21b+7bc
I hope I helped!

Given ,

To find ,
value of x
Now ,

Dividing both sides by 2 , we get

nikal -,- xD
Divide $13.80 by 4, then multiply by 6 to get $20.70