Five hotdogs cost 5 x $1.50 = $<<5*1.5=7.50>>7.50.
Three salads cost 3 x $2.50 = $<<3*2.5=7.50>>7.50.
The total cost was $7.50 + $7.50 = $<<7.5+7.5=15>>15.
And, Ursula had 2 x $10 = $<<2*10=20>>20.
Therefore, Ursula got a change of $20 - $15 = $<<20-15=5>>5.
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