Adding 3/8 to a number increases it by 5% of its original value. what is the original

Write a polynomial that fits the description: a third-degree polynomial with leading coefficient -4

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

1. if we have 3 babies what is the probability they’re going to be all boys? 2. if we roll 2 die at the same time what is the probability of getting less than 10 on the first roll and a 5 on the second roll 3. if we have 3 babies what is the probability their is going to be 2 girls? 4. if we have 3 babies what is the probability of having no more than 1 girl? 5. it we have 3 babies and then have another 3 babies what is the probability of us having at least 1 boy and then having all girls?