A teacher collected data on 20 of her students for two different quizzes. Based on the scatterplot, if a student scored a 90 on Quiz 1, what would be their predicted score on Quiz 2?

What statement is true? 2x^2-9x+2=-1

Which of the following circles have their centers in the third quadrant? check all that apply.

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?