Plzzz help me with thiss

Step-by-step explanation:

rather than doing all of the sums, you should just learn the formula (for the pattern)

it is n(highest + lowest) where n is number of numbers

             2

for example 2+3+4+5+6 = 20

5(6+2) =  20

  2

1+2+3+4+5+6+7+8 = 36

8(9) = 72/2= 36

2

the probability that a bird is green (.30) is true

step-by-step explanation: