Jeff stops at McDonald's every day on the way to school to get a Mickey D's sweet tea for $1 and a sausage biscuit for $1. He stops on the way home to get a double cheeseburger and fries for $2.50 and a sundae for $1. How much does Jeff spend in a school year? Assume 180 days in a school year.

12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)

What expression is equivalent to 42x-56y