If event a has a 30% chance of occurring and event b has a 45% chance of occurring, what is the probability that event a or event b will occur

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.