Alicia conducted an experiment in which a spinner landed on green seven times if the experimental probability of the spinner landing on green is 1/5 how many trials did alicia perform

35 trials

Step-by-step explanation:

Probability = Favorable Outcome / Total Outcome

 P = 1/5

Favorable Outcome = 7

Substitute the values,  

1/5 = 7 / Total Outcomes

1/5 =7/x

Cross multiplication:

1x=5*7

x=35

Total Trials = 35

b. astronomers

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.