Triangle ABC is similar to triangle EFD what scale factor is required to dilate triangle

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?

Multiply and simplify. (x - 4) (x^2 – 5x – 6) i will mark brainliest if your answer is right. show how you got the answer. if your answer is correct but does not show how you got the answer you will not be marked brainliest.

Which is an x-intercept of the graphed function? (0, 4) (–1, 0) (4, 0) (0, –1)