Find the sector area of the shaded sector. Leave your answer in terms of pi. T
87°
S
72°
U
W
Х
V
WU = 16

The variable z is directly proportional to x, and inversely proportional to y. when x is 4 and y is 13, z has the value 1.2307692307692. what is the value of z when x= 9, and y= 20

What is the nth term rule of the linear sequence below? 27 , 25 , 23 , 21 , 19 , . .

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?