Answer:
x= 99
Step-by-step explanation:
first we open brackets
6x+36=7x-63
transpose
6x-7x= -63-36
-x=-99
the signs cancel each other so
x= 99
9/4 = 2 1/4
1/4 = 0.25
2.25 is your answer
hope this helps
Answer:

Step-by-step explanation:
Given:
Width of average grain of salt is, 
Width of Rhinovirus is, 
Now, expressing each width in scientific notation form, we get:

Now, in order to get how many times 'W' is wider than 'w', we divide the two widths. This gives,

Therefore, the grain of salt is
wider than Rhinovirus.
Answer:
2z+14
Step-by-step explanation:
you multiply
4*z =4z
4*2 =8
and then you multiply
2*3=6
2*-z=-2z
the answer is 2z+14