Idk know the answer sorry
Given:
In a number, adding 
, then multiplying the result by 
we get 8.
To find:
The unknown number.
Solution:
Let the unknown number be x.
According to the question,
Multiply both sides by 
.
Subtract 
from both sides.
Therefore, the required number is 
.
Um...thats a tough one... well first you have to put the formula together which is pi(10)(26)+pi(10)^2 multiply 10 times 26 then 10 times ten giving us a much more easier equation 260pi + 100pi. we can cross off answer A and answer C just by looking at the simplified equation. now add the two together, giving us 360pi inches^2
10+ ?= 49
⇒ ?= 49-10
⇒ ?= 39
10 plus 39 can give you 49~
Speed=distance traveled/time of the travel=78/2=39 mph
