Cereal a cost. $4.20 for a 14-ounce box and cereal b costs $3.90 for a 12-ounce box. which is better?

Cereal Box A is better

Step-by-step explanation:

Given

Two cereal boxes; A and B

Cereal A costs $4.20

Cereal A weighs 14 ounce

Cereal B costs $3.90

Cereal A weighs 12 ounce

To get which is better, we need to calculate the cost of each cereal per unit ounce

To do this, we divide cost of cereal by weight of the box.

i.e. Unit Price = Cost of box ÷ Weight of box

For Box A

Unit Price = $4.20 ÷ 14 ounces

Unit Price = $0.3 per unit ounce

For Box B

Unit Price = $3.90 ÷ 12 ounces

Unit Price = $0.325 per unit ounce

By being better, means cheaper.

Since Cereal Box A costs less than Cereal Box B, then Box A is better

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.

correct answer:

b.(19,-2)