Answer:
3
Step-by-step explanation:
The notation "f(4)" means you put 4 where x is in the algebraic expression, then do the arithmetic.
f(4) = 2·4 -5
= 8 -5
= 3
10*2=20
20*10=200
i think the answer is E
Answer:
x+-15?
Step-by-step explanation:
Let a number = x
therefore the sum of a number times 3 = 3x
and 6 means 3x+6 equals 4
so the equation is 3x+6=4
