Test yourself 18 A seesaw has a weight of 40 N placed 1 m from the pivot and a weight of 20N is placed on the opposite side of the pivot at a distance of 2 m from the pivot. Is the seesaw balanced?​

Test yourself 18 A seesaw has a weight of 40 N placed 1 m from the pivot and a…

Suppose that the water level of a river is 340 meters and that it is receding at a rate of 0.5 meters per day. Write and equation for the water level, L, after d days. In how many days will the water level be 260m?

Suppose that the water level of a river is 340 meters and that it is receding …