$7.50(2)=$15.00 (She takes the taxi twice, and its $7.50 each time she takes it) $0.45(16)+$0.45(8)=$10.80 (Each mile is $0.45, she goes 16 miles on the way to work, and only 8 miles on the way home. Since she walks half way and takes the taxi the other half. Half of 16 is 8) $15.00+$10.80=$25.80 Alexis pays $25.00 per day for her taxi rides.