A supermarket advertises 3 pounds of tomatoes for $ 1.20. How much would it cost to buy 5 pounds of tomatoes? Write it as a proportion, please!

$2.00

Step-by-step explanation:

$1.20÷3=0.40

therefore a pound of tomatoes is for $0.40¢

so 5lbs is for: 5×0.40

=$2.00

for the points

step-by-step explanation:

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,