Ms. Rodriguez bought 17 tubes of paint for her artwork. Large tubes cost $39.50 each and small tubes cost $21.50 each. She spent a total of $563.50 not including tax.
Part A. Write a system of equations that could be used to determine how many tubes of each
size Ms. Rodriguez bought.
Part B. How many tubes of each size did she buy? Show or explain how you got your answer.

Which of the following statement about pascal's triangle are true?

The table below represents the displacement of a fish from its reef as a function of time: time (hours) x displacement from reef (feet) y 0 4 1 64 2 124 3 184 4 244 part a: what is the y-intercept of the function, and what does this tell you about the fish? (4 points) part b: calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. (4 points) part c: what would be the domain of the function if the fish continued to swim at this rate until it traveled 724 feet from the reef? (2 points)

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.