If the terms offered to credit customers are 2/10, n/30, which of the following could be the accounts receivable turnover rate, assuming no customers pay late?

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?

Mario is constructing a frame for 10 in. by 8 in. photo. he wants the frame to be the same with all the way around in the same area of the frame and photo to be 120 square inches what is the dimension of the frame?