20% of 90 is 18
Explanation - 90 divided my 20 = 4.5 times 4 because 20 is 1/4 of 100
The answer is 23 i just answered that one earlier!
Answer:





Step-by-step explanation: the other angle is equal to his simmetrical, cause the triangle is isosceles, so is value is x. The sum of the angle in a triangle must be 180°
I can’t see the graph so I’m not sure
Answer:
1st option
Step-by-step explanation:
to find f(g(x)) substitute x = g(x) into f(x) , that is
f(g(x))
= f(4x - 5)
= 2(4x - 5) + 1 ← distribute parenthesis
= 8x - 10 + 1
= 8x - 9