Mary went to the store and bought 2 sweet potatoes and 3 red peppers for $2.90. Considering the good prices, she returned to the store and bought 1 sweet potato and 2 red peppers for $1.80. How much are the red peppers each?

Your equations aren't what you were supposed to get...

Take the first sentence only:
2x + 3y = $2.90

Taking the second sentence:
x + 2y = $1.80

Can you try this now?

EDIT: Corrected a typo. Changed "2x + 3y = $2.30" to "2x + 3y = $2.90"

Your equations aren't what you were supposed to get...

Take the first sentence only:
2x + 3y = $2.30

Taking the second sentence:
x + 2y = $1.80

Can you try this now?

Shouldn't the first number sentence be 2x+3y=$2.90?

Right, that was a typo from me :o