4. Two friends, Sequoia and Raven, sold organic chap sticks at the local market. Sequoia sold her chap sticks for $4 and Raven sold hers for $3 each. In the first hour, their total combined
sales were $20.
If Sequoia sold. chap sticks and Raven sold y chap sticks, then the following equation can be formed:
4x + 3y = 20
In the first hour, the friends sold a total of 6 chap sticks between them.
Find the number of chap sticks each of the friends sold during this time by forming a second equation and
solving the simultaneous equations graphically.

Combine like terms to make a simpler expression 3z+z

Madeline takes her family on a boat ride. going through york canal, she drives 6 miles in 10 minutes. later on as she crosses stover lake, she drives 30 minutes at the same average speed. which statement about the distances is true?

1. why is a frequency distribution useful? it allows researchers to see the "shape" of the data. it tells researchers how often the mean occurs in a set of data. it can visually identify the mean. it ignores outliers. 2. the is defined by its mean and standard deviation alone. normal distribution frequency distribution median distribution marginal distribution 3. approximately % of the data in a given sample falls within three standard deviations of the mean if it is normally distributed. 95 68 34 99 4. a data set is said to be if the mean of the data is greater than the median of the data. normally distributed frequency distributed right-skewed left-skewed