(need asap! ) write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.

band students are tested on, and required to pass, a certain number of scales during the year. as of today, jeanette has passed 8 scales, whereas her friend paul has passed 3 of them. going forward, jeanette has committed to passing 3 scales per week, and paul has committed to passing 4 per week. at some point soon, the two friends will have passed the same number of scales. how long will that take? how many scales will that be?

in _ weeks, the friends will each have passed _ scales.

Fran would like to estimate the mean amount of time it takes people in her town to travel to work. the town's population is 150,000 and about 90,000 of those are working adults. which statements are true? select each correct answer. there is no way to infer the value of the mean. she must collect data for all 90,000 working adults and calculate the mean. a larger sample of working adults will provide a better estimate of the true mean than a smaller sample. the population of working adults is too large for using a sample to estimate the mean of the entire group. if she takes a random sample of the population of working adults in her town, the mean for that group is likely close to the mean for the entire group.

Franklin neason earns $5,250 a month as a sales manager. what is his semimonthly salary? a.$10,500b.$5,250c.$2,365d.$2,625

Aiden drives to school and back each day. the school is 16 miles from his home. he averages 40 miles per hour on his way to school. if his trip takes 1 hour, at approximately what speed does aiden drive home?