Answer: 5 pounds
Step-by-step explanation: because you have to do 0.45 times 5 = 2.25 and then you know that 1.29 times 3 = 3.87 so you add 3.87 + 2.25 and u get 6.12
It reveals whether the answers will be negative, and how many solutions the equation will have.
That will be radius * radius theeeeeen multiply it on the height
21 over 50 is
21/50.
The same thing, just put 21 on top, a line under it, and below that line, put the 50
