The cost of a phone call lasting 3 minutes 30 seconds was 52.5 p. At this rate, what was the cost of a call lasting 5 minutes 20 seconds?

no i do not : ( what is it?

answer: 16

step-by-step explanation: first you would add 6+6 which equals 12 then add 2+2 which equals 4. then add 12 + 4 which is 16.

hope this ^_^

graph b

step-by-step explanation:

one solution- graph a (clear intercepting point.)

no solution- graph b (they're parallel, there will never be a point of interception.)

infinite solutions- graph c (all points intercept.)