Aconstruction crew has jsut built a new road. the built the road at a rate of 5 kilometers per week. they built 156.25 kilometers of road. how many weeks did it take them?

What are the sotions to the quadratic equation 9x^2=4

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.