It technally already is but if there is supposed to be a decimal where the comma is then drop a zero
To find the x-intercept, put y=0
9x^2 +3x=0
3x(3x+1)=0
x=0 or x=-1/3
a) fraction notation 1/5 and percent notation is 20% or just 20
b) 1/5
Answer:
she didnt multiply 5 times 12