Respuesta :


a)
3*1.99 I estimated 3*2=6
1*3.99=4
2*1.29=2*1.25=3
1.25*1
.20*3=.75
6+4+3+1+.75= 14.75
$15
I just used easy to add numbers that made sense
b)
3*1.99=4.97
+
1*3.99=3.99
+
2*1.29=2.58
+
1*1.25=1.25
+
0.20*3=0.60
=
13.39

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