Ricky got 1.058 hits, and Pedro got 1,612 hits.
B. Abigail used less than Carly and the total was 109.
Answer:

Step-by-step explanation:
Height doubles at every 30 seconds, so let's call n how many times it happens, and the t the total time:
n = t/30
If the height doubles one time, it is multiplied by 2, if it doubles 2 times, it's multiplied by 2², for n times, it is multiplied by 2ⁿ, so for an initial height equal to 3:

You already have the answer in the question
The answer is B.
Function means every x corresponds to one unique y value. ACD all have duplicates correspondence.