What’s the answer? Pls help soon

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

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min if they did not stop driving, how many miles could kyle and elijah drive in a whole day? ? 1 day = 24 hours. plzzz i will give you 100 points

Solve the system of equations using the linear combination method. {4x−3y=127x−3y=3 enter your answers in the boxes.