Austin mowed 7 lawns in 4 hours at the rate how long will it take him to mow 21 lawns

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

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²

The moats separating people from the animals are 5 m wide for lions and 4 m wide for the elephants. if the lion’s moat is 4 m deep, how deep should the elephants’ moat be?