Kendra owns a restaurant. She charges $3.00 for 2 eggs and one piece of toast, and $1.80 for one egg and one piece of toast. How much does Kendra charge for an egg? A piece of toast? a. $1.20 per egg; $1.20 for toast

b. $.60 per egg; $.60 for toast

c. $1.20 per egg; $.60 for toast

d. $.60 per egg; $1.20 for toast

answer is A. $1.20 per egg; $.60 for toast  

2 eggs and one piece of toast:

1.20 (2) = 2.40 eggs

             + 0.60 toast

               $3.00

one egg and one piece of toast:

1.20 (1) = 1.20 eggs

             + 0.60 toast

               $1.80

$15 each

step-by-step explanation:

$45/3 children= $15 each

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,