11. Find the percent change: 18 oz to 12 oz

Alake near the arctic circle is covered by a sheet of ice during the cold winter months. when spring arrives, the ice starts to melt. s(t) models the ice sheet's thickness (in meters) as a function of time tt (in weeks). s(t)=-0.25t+4

Factorize: x^2+8x+10 i just solved it but i don't know if the process is correct

The graph shows the distance kerri drives on a trip. what is kerri's speed?