(I need help) Compute each of the following mentally.
a.) 160 + 92 – 32 + 40 – 18

b.) 36 + 97 – 80 + 44

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3

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