How many terms are in the algebraic expression 2x-9xy-17y

What is the value of the expression "two less than six times the diffrence of a number and five" when n = 9?

The graph shows the prices of different numbers of bushels of corn at a store in the current year. the table shows the prices of different numbers of bushels of corn at the same store in the previous year. previous year number of bushels price of corn (dollars) 2 10 4 20 6 30 8 40 part a: describe in words how you can find the rate of change of a bushel of corn in the current year, and find the value. part b: how many dollars more is the price of a bushel of corn in the current year than the price of a bushel of corn in the previous year? show your work.

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180