An electrician can wire on average 4.5 houses in a week. how many months will it take her to wire 55 houses if she wires the same number each week and figures on 4.5 weeks per month?

1. during first 10 seconds 2. between 10 seconds and 35 seconds 3. during 35 seconds to 40 seconds

If f(x)= 3x+6 which of the following is the inverse of f(x)

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.