Question 955171
B=cost of burger; F=cost of fries
4B+6F=$10.50
6B+4F=$11.50 Add together
10B+10F=$22.00
10(B+F)=$22.00 Divide each side by 10
B+F=$2.20 Each burger and fries costs $2.20, so multiply by 3
3(B+F)=$6.60 
3B+3F=$6.60 ANSWER 3 burgers and 3 fries costs $6.60.