- A traffic light is green for 2 minutes, red for 40 seconds, and yellow for 10 seconds.
When a car approaches the light, what is
the probability that it is not red?

just get this app called photo math it should be able to do those

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;