You want to know if the mean math test scores of 8th grader in the U. S. with the mean math test scores of 8th graders in Europe using a shared test with a confidence of 95%. What p-value would allow you to reject the null hypothesis that the mean of the scores of students in the U. S. is the same as the mean of the scores of students in Europe?

What is the number 321,000,000 in scientific notation? also what is the number? ?

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

Adesigner charges a one time fee of $200 plus $40 an hour for each project. write an expression to represent how much money the designer will make for a project