240 years ago students planted a tree infront of their school since then the tree has grown 18 meters taller and the distance around the tree has increased by 3 metersWhats the unit rate for the increase on the height

Solve 2x+y=3 x+y=5 in substitution method

Find the values of the variables and the lengths of the sides of this kite.

The lengths of two sides of a triangle are 9 and 15. what can be said about the length of the third side? a. it must be greater than or equal to 6 and less than 24. b. it must be greater than or equal to 6 and at most 24. c. it must be greater than 6 and less than 24. d. it must be greater than 6 and at most 24.