Answer:
X=3
Step-by-step explanation:
7 x 1 = 7
7 x 2 = 14
7 x 3 = 21
You add seven to the last answer to get your next one.
Answer:
The second number is a*t/s
Step-by-step explanation:
s/t = a / x Let x be the second number.
sx = at divide by s
x = at/s
Answer:

Step-by-step explanation:
can be written as 
can be written as 
In the sum digit at any position will be added at the digit at the same position

Answer:
i think that it is 3.125
Step-by-step explanation:
because 1.75 + 1.375 =3.125
Answer:
uh
Step-by-step explanation:
i think i need more info