What is the 20th term of the sequence that begins -3, 6, -12, 24?

a) -524,288
b) 524,288
c) 1,572,864
d) 3,145,728

Why do interests rates on loans to be lower in a weak economy than in a strong one

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)?

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?