?

Suppose that the amount of time it takes to build a highway varies directly with the length of the highway and inversely with the number of workers. Suppose also that it takes 100 workers 6 weeks to build 4 miles of highway. How many miles of highway could 160 workers build in 15 weeks?

In October of 2010 I found out I was pregnant with fraternal triplets. I miscarried one before 8 weeks and the other around 12 weeks. I went on to have one baby girl. We are now ttc and Im just curious as to what my chances are of having multiples again??

A family has two cars. The first car has a fuel efficiency of miles per gallon of gas and the second has a fuel efficiency of miles per gallon of gas. During one particular week, the two cars went a combined total of miles, for a total gas consumption of gallons. How many gallons were consumed by each of the two cars that week?

2(v-7)-4=-4(-4v+8)-6v

I have 11 collection accounts on my credit report (please don't judge I have a child who had some medical problems) I have gotten 10 out of the 11 to agree to delete them from my report when payment is received in full. My question is will this help my score at all? that is almost all of my debt wiped clean.