APPLES now that I have got your attention

equivalent ratios, then answer the questions.
Pounds __515
($)cost ) 0.70 3.50 7

Apples cost $ per pound

you need to do 1 2nd and 3rd one plz

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15

Ineed to know the answer to this algebra question.

This is about circle theorems. someone asap : (