<human>:  Melissa works as a pet groomer. This week, she has 8 dogs that need to be bathed, 5 cats that need their nails clipped, 3 birds that need their wings trimmed, and 12 horses that need to be brushed. If she splits the grooming jobs evenly over the days, how many animals will she groom each day of the week?
<bot>: How many animals does Melissa have to groom? ** Melissa has 8 + 5 + 3 + 12 = <<8+5+3+12=28>>28 animals to groom over the next week.
How many animals will Melissa groom each day of the week? ** Therefore, She will groom 28 / 7 = <<28/7=4>>4 animals each day.
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