Peter bought 3 shirts for £54.50 each. He received £36.50 change from the shop assistant.
How much money did he give to the shop
assistant?
Help pls

Emma will roll two number cubes labeled 1 through 6. she will record the sum of the two numbers after each roll. she will roll the two cubes 540 times. how many times should emma expect the sum to equal 5?

Which expression is equivalent to the expression shown?

Find the domain of the following expression: 1/(√x)-2