What decimal number does point a on the number line below represent

0.25
-0.25
1.75
-1.75

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

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median amount spent? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x