Sheila simplified an expression using the following steps. Which property justifies Step 3? Step 1: 5x + 4(3 + 2x) Step 2: 5x + 12 + 8x Step 3: 5x + 8x + 12 Step 4: 13x + 12 O A. Identity Property O B. Associative Property O C. Distributive Property D. Commutative Property​

When drawing a trend line for a series of data on a scatter plot, which of the following is true? a. there should be an equal number of data points on either side of the trend line. b. all the data points should lie on one side of the trend line. c. the trend line should not intersect any data point on the plot. d. the trend line must connect each data point on the plot.

The number of nails of a given length is normally distributed with a mean length of 5.00 in, and a standard deviation of 0.03 in. find the number of nails in a bag of 120 that are less than 4.94 in. long.

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?