A large school district claims that 80% of the children are from low-income families. 200 children from the district are chosen to participate in a community project. Of the 200 only 74% are from low-income families. The children were supposed to be randomly selected. Do you think they really were?

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b? will mark the

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?