Respuesta :

to estimate round the 3 values to the nearest dollar

2.99 = 3

4.79 = 5

3.87 = 4

3 + 5 +4 = 12

 estimated total would be approximately $12

 real total = 2.99 + 4.79 +3.87 = 11.65 ( not far off of the estimated value)