10. Natasha bought Gala and Honeycrisp apples at the grocery store. The Honeycrisp apples were $1.50 each if you bought 6. Find the cost of each Gala apple if the total cost is $16.50 and she bought 6 of each.
Let x be the cost of each Gala apple.
The total cost of the Gala apples is 6*x = $6x.
6 Honeycrisp apples cost 1.50*6 = $<<6*1.5=9>>9
The total cost of the apples is $6x + $9 = $16.50
Subtracting $9 from both sides of the equation gets $6x = $7.50
Dividing both sides by $6 gets x = $<<7.5/6=1.25>>1.25
Each Gala apple cost $1.25. Answer: \boxed{1.25}.