Watermelon cost $5.69 pinnacle cost 4.98 mango cost 1.09 i have 30.00 to spend what combination of watermelon pineapples and mango can i buy for 30.00 what is to different was i can spend my money if i didn't spend less than28.00

Watermelon costs 5.69 dollars.
pinnacle costs 4.98 dollars
mango costs 1.09 dollars
These are the fruits that you want to buy.
You have 30.00 dollars to spend to any combination of the 3 fruits.
What I understood about your question is that you spent not less than 28.00 dollars.
SO how many fruits did you bought?
=> 5.69 + 4.98 + 1.09
=> 11.76 x 2
=> 23.52
So far, we already have 2 watermelon, 2 pineapples and 2 mango.
=> 30.00 – 23.52 = 6.48
So we still have 6.48
=Let’s add 1 more pineapple and 1 mango
=> 23.52 + 4.98 + 1.09
=> 29.59, thus you still have 0.41 as a change.

In case of a right triangle
c^2 = a^2 + b^2
c^2 = 9+16
c^2 = 25
c = √25
c = 5