(-3x+4)+(8x-5) A.) 5x - 1
B.) 5x - 9
C.) 11x - 1
D.) 11x - 9
E.) none of these

Given the choice between receiving $1.000.000 in one month or a single penny-doubled everyday for the period of one month; which option would you choice? show your work to support your answer. (assume that 1 month=30 days)

If 20% of a number is 35, what is 50% of that number?

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?