plz i wi give you 30 points if you answer the question

Agraphic designer created a logo on eight and a half by 11 inch paper. in order to be placed on a business card, the logo needs to be one and 7/10 inches by 2 and 1/5 in. what is the scale factor of the dilation

∆red ≅ ∆ by rule will give brainiest if possible

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.