How tall are sally and anna if sally is 0.1m taller than anna and their combined height is 3.16 meters

Solve the equation -9p - 17 =10 a -3 b. 16 c. 18 d -16

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

If angle b measures 25°, what is the approximate perimeter of the triangle below? 10.3 units 11.8 units 22.1 units 25.2 units