5 inches. once you divide 19 into 4 sections you have 16 feet used up with 3 feet and 1/2 a foot left to simplify. these 3 feet will equal 3/4 an inch and the half a foot will equate to half of the fourth inch (2/8). we add the 4 from simplifying to 16, add 3/4 an inch or 6/8 from the 3 feet, then add 2/8 from the half foot. this will equal 5 inches.
This is binomial because 1) there are two outcomes (either do or do not use in class); 2) the events are independent of each other (the probability of one person using a phone in class does not affect the probability of another person doing this); and 3) there is a fixed number of trials (9).
</span><span>✦ Since Olivia has already saved 8 dollars, the inequality would be addition. </span><span>✦ The only two choices for that would be choice #1 or #2 </span>✦ Since she's earning 7 dollars per hour, the answer would be the first choice. ✦ 8 + 7n ≥ 36, so n ≥ 4
Answer: Choice 1
<span>Hope that helps! ★ <span>If you have further questions about this question or need more help, feel free to comment below or leave me a PM. -UnicornFudge aka Nadia </span></span>