What is 817.502 rounded to the nearest whole number?

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

Point r divides in the ratio 1 : 3. if the x-coordinate of r is -1 and the x-coordinate of p is -3, what is the x-coordinate of q? a. b. 3 c. 5 d. 6 e. -9

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?