John left school with $8.43. he found a quarter on his way home and then stopped to buy an apple for $0.89. how much money did he have when he got home?

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.

The longer leg of a 30-60-90 trangle is 18

The formula for finding volume of a cone 1/3pi x r^2h. the volume of a cone is 300 cm^3 and the height of the cone is 10 what is the approximate radius of the cone