What are the domain and range of the function represented by the set of ordered pairs? {(–3, 2), (–2, 1), (–1, 0), (0, –1)}

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

Evaluate the expression for the given value of the variable. | ? 4 b ? 8 | + ? ? ? 1 ? b 2 ? ? + 2 b 3 -4b-8+-1-b2+2b3 ; b = ? 2 b=-2

Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out