Assign two variables for each problem, and write the equations. do not solve.

a basketball team stopped at a fast-food restaurant after a game. they divided into two groups. one group bought 5 chicken sandwiches and 7 hamburgers for a cost of $24.90. the second group sent $28.80 and bought 5 chicken sandwiches and 9 hamburgers. how much does a hamburger cost?

Simplify 24÷(-2)(3)+7 a. -29 b. 3 c. 11

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14

What is the value of the product (3-2i)(3+2i)?