John spends $3.07
John gets as his change $6.93
John has a ten dollar bill
He buys a pop for $1.29
He also buys 2 candy bars at $0.89
= 0.89×2
= 1.78
The amount he spends
= 1.29 + 1.78
= 3.07
He spends $3.07
The amount of change he gets can be calculated as follows
10-3.07
= $6.93
Hence John spends $3.07 and gets $6.93 as his change
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