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

Which statement about the relative areas of triangle abd and triangle xyz is true

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each, and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent. how much did jamie pay at the end?

Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b