How does the height of the triangle compare to the height of the rectangle?

Peaches cost $4.29 per pound. find the cost of two and a quarter pounds of peaches.

Can someone check if i did this correct. it’s number 4 if you’re wondering.

The experience c-0.25c can be used to find the cost of an item on sale for 25% off which expression beloit equivalent to c-0.25c