I'm having the legit worst day. so, can someone answer this and show proof?

if i’m wrong, i’m sorry. but i think it would be :

bxh= 5x4=20.

then you would do 1/2bxh for the triangle. that would be 9.

so i think it’s 29.

$12. that is my answer.

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times