Rachel’s Chemistry class has 4 unit exams and a final. She needs at least an average of 85 (a
letter grade of B) in order to keep her scholarship. If her unit exam scores are 75, 89, 79 and 92,
what is the grade Rachel needs on her final exam in order to keep her scholarship?

Which of these people has balanced their checkbook correctly? oa. gary: the balance in his check register is $500 and the balance in his bank statement is $500. b. gail: the balance in her check register is $400 and the balance in her bank statement is $500. c. gavin: the balance in his check register is $500 and the balance in his bank statement is $510.

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

Rationalize the denominator- 12x/√x-10