How do you know if an equation is linear?

What is (3*3) + (42:7+6) equal to?

In 2008, the population of 10-to 14-years-old in the United States was 20,484,163. Write this number in expanded form

What has a sum of 20 and a difference of 4

A mandatory competency test for high school sophomores has a normal distribution with a mean of 400 and a standard deviation of 100. if the top 3% of students receive $500, find the minimum score you would need to receive this award.

A house purchased five years ago for 100,000 was just sold for 135,000 assuming eponteniol growth approxmate the annual growth rate rate to the nearest percent

A 9-cm chord is 11 cm from the center of a circle. What is the radius of the circle? C. 13.0 cm B. 11.9 cm A. 9.0 cm D. 14.2 cm

What is the percent of change from 180 to 387

A value one standard deviation from the mean is less likely to occur than a value three standard deviations from the mean. True or False?

Eight times what equals 565

A rectangular window is 4 ft long and 3 ft wide. Jane would like to buy a screen for the window. The cost of the screen is based on the number of square inches the screen is. Use the facts to find the area of the window in square inches.