What is the property of 21 times 9 = 9 times 21

How do you factor x² + 7x + 12

63 hundreds equal how many tens

Which change took place in the African slave trade in the 1500s? Question 5 options: Enslaved people were sent to the Americas by Spanish and Portuguese as laborers. Enslaved people were sold by African kings to increase their personal wealth.

In a sample of 49 adolescents who served as the subjects in an immunologic study, one variable of interest was the diameter of a skin test reaction to an allergen. The sample mean and standard deviation were 21 and 11 mm erythema, respectively. a.

Amanda delivers 56 meals in 4 hours. At this rate, how many meals can she deliver is 7 hours?

Sally uses flowers to make displays and bouquets. She earns £3.50 for each display she makes. She earns £2.70 for each bouquet she makes. One day she makes 24 displays and 13 bouquets. She price £23.80 on what she earns for the day.

A 5-mile cab ride costs $7.20. A 9-mile cab ride costs $11.60. Find a linear equation that models a relationship between cost c and distance d. c = 1.44d + 4.40 d = 1.10c + 4.40 c = 1.29d + 1.70 c = 1.10d + 1.70

Two parents each have blood type AB, and their first child is blood type AB. What is the probability that their second child will have blood type AB? (Express the probability as a percent. Enter the number only without the percent sign.

Fraction as a decimal, use bar notation id necessary 3/11 = - 5/8 = - 7/10 = 2 5/7 =

Angle 1 and Angle 2 are complementary angles. Angle 1=20 degrees. Angle 2=2p. Solve for p