Answer:
its 43
Step-by-step explanation:
as x was 1 in the first problem
you add X (1) by 42 and get
43..
sorry if thats wrong.
Answer:
19 houses
Step-by-step explanation:
90*(2/5)=36
90-36=54
54*(2/3)=37
54-37=19
Answer:
2,637.18 
Step-by-step explanation:
The formula for finding the volume of a cylinder is....
V = π 
π = 3.14
Radius = 7
Height = 13
Now that we have what we need, we can substitute the numbers into the equations to get our volume
V = π 
V = 3.14 *
* 13
V = 3.14 * 49 * 13
V = 202.86 * 13
V = 2,637.18
The volume of the cylinder is 2,637.18 
Hope this helped!
have a supercalifragilisitcexpialidocious day!

so the 2nd equation is really the first equation in disguise.
since both equations are the same, that means if you graph them, is just one line pancaked over the other, and the solutions points is every single one on each, namely
infinitely many solutions.