A figure has been shrunk from center O with a scale factor r = 0.25. What scale factor would enlarge the figure back to the original size?

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?

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

Afair die is cast four times. calculate the probability of obtaining exactly two 6's round to the nearest tenth of a percent