At a fast-food joint, 2 cheeseburgers and 3 medium shakes cost $8.98. at the same fast food joint, 7 cheeseburgers and 2 medium shakes cost $15.45. what is the cost of a cheeseburger? what is the cost of a medium shake?

Plz hurry evaluate the expression a+b where a=8 and b=19

Astudent found the solution below for the given inequality. |x-9|< -4 x-9> 4 and x-9< -4 x> 13 and x< 5 which of the following explains whether the student is correct? -the student is completely correct because the student correctly wrote and solved the compound inequality. -the student is partially correct because only one part of the compound inequality is written correctly. -the student is partially correct because the student should have written the statements using “or” instead of “and.” -the student is completely incorrect because there is no solution to this inequality.

Whuch statements about the diagram are true? select all that apply.