Add one set of parentheses to the expression 2x2 + 4 - 5
so that the value of the expression is 75 when x = 6.

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.

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?