Answer:
which class question is this
Answer:
Step-by-step explanation:
arithmetic sequence: 60,68,76,......
a = 60
d = 68 - 60 = 8
an = a + (n-1)*d
a20 = 60 + 19 * 8
= 60 + 152
= 112
There are 112 seats in the 20th row
Answer:
Assuming x is the number, then 
Step-by-step explanation:
If the product of a number and 5 is 8, the equation becomes:
(assuming x is the unknown number).
We can isolate the variable x by dividing both sides by 5.
Hope this helped!
Guess guess guess guess guess guess guess guess
Answer:
The difference is in which in way that they can be separated.
Step-by-step explanation:
While all three of these include mixtures of two or more things, a suspension can typically be re-separated by using a centrifuge and a solution can be filtered out. A colloid on the other hand, cannot typically be separated after it is put together.
