The sum of nine times a number and fifteen is less than or equal to the sum of twenty four and ten times the number

What situation is an example of an observational study

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.