Pl i need the solution to this pl

−a2+b2/2a2+ab−3b2

Step-by-step explanation:

b2−a2/2a2+ab−3b2

=

−a2+b2/2a2+ab−3b2

The Equation is already in its simplest form. There are no terms to combine in this type of equation.  

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)

kbmflmklbhml; bmlzb; bdhzz

step-by-step explanation: