The cost of Dale's toast is 2 × $1 = $<<2*1=2>>2.
The cost of Andrew's toast is 1 × $1 = $<<1*1=1>>1.
The cost of Dale's eggs is 2 × $3 = $<<2*3=6>>6.
The cost of Andrew's eggs is 2 × $3 = $<<2*3=6>>6.
Their breakfast cost $2 + $1 + $6 + $6 = $<<2+1+6+6=15>>15.
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