Joel is making a scarf. The diagram shows the ratio of knit stitches and purl stitches of Joel's scarf. Knit :2
Purl:7
Based on the ratio, how many purl stitches are there if there are 8 knit stitches in one row of Joel's scarf?

Can someone answer this question? : )

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.

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?