(7a-2b)+3b how can i answer this without alot of steps

Choose the correct slope of the line that passes through the points (1, -3) and (3, -5)

The table below lists recommended amounts of food to order for 10 party guests. how much of each food item should nathan and amanda order for a graduation party with 55 guests? use the table to answer. item amount fried chicken 16 pieces lasagna 7 pounds deli meats 1.8 pounds sliced cheese 1 and two fifths pounds bakery buns 1 dozen potato salad 2 pounds

What is the domain of the step function f(x)=[2x]-1?