A set of data includes the ages of all dogs in a pet shelter, which range from 4 to 101 months. Calculate the width to be used in the construction of a frequency distribution for the data with 6 classes. To find the width, find the difference between the highest and lowest data values, divide by the number of classes, and round up to the next odd number.

Find the product of (4x + 3y)(4x − 3y). 16x2 − 24xy + 9y2 16x2 − 9y2 16x2 + 24xy + 9y2 16x2 + 9y2

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)