An electronics store kept records of sales of tablets for the previous month. Those buying a tablet had the option of buying an additional warranty for their item. It was also recorded whether the customer paid with credit card or cash (no other payment methods were allowed). Some summary information is below.

tablets purched with credit card ----- 122

tablets sold with warranty -------- 36

tablets sold with warranty purchased with credit card -------- 24

total tablets sold ---------- 200

(a) what percentage of tablets were purchased with cash?

(b) what percentage of tablets were sold without the warranty?

(c) what percentage of tablets purchased with cash were sold with the warranty?