1. This object is made with five identical cubes. Each cube edge is 3 centimeters long. 3 cm
What is the surface area of this object in square centimeters?
o
198
O 66
W
O 45
135

Which two undefined geometric terms always describe figures with no beginning or end?

The sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?