Answer:
you needed to mark this question for the science section
Step-by-step explanation:
Answer:
Q4
●-4
●2
Q5
a) f(x) = 18x if x≤5
6x+90 if x>5
b) 150
c)
Step-by-step explanation:
4X + 8 9X+3 (this is the equation, nothing to explain in this step)
4x + 5 = 9x (you combine or subtract the like terms, 8 - 3 = 5)
5 = 5x (you do 9x - 4x = 5x, subtracting the like terms)
1 = X (your answer after dividing 5 from both sides)