36/30=1.2
30/1.2=25
3x+4=25
3x=21
X=7
Therefore a is your answer
Hope this helps
Please, use the symbol "^" to denote exponentiation.
f(x) = x^2 - x^3.
f( -10) is found by substituting -10 for x in the given equation (immediately above):
f( -10) = ( -10)^2 - ( -10)^3, or -100 + 1000, which equals 900.
The number is "X"
27+10 equals half "X"
that 37 this is half of "X"
37×2=74! "X"=74