She needs to answer 16 questions to get -80. (80÷5=16) but since she needs a smaller score than that to win the game, she then will have to answer more than 16 questions correctly. at least 17 to get less that -80. Hopefully I am understanding the question right.
Answer:
Step-by-step explanation:
i) 
Answer:60
Step-by-step explanation:
⅟₂ of 30=15
¼ of 60=15
<h3>Half of thirty is 15 so u need to know what ¼ of something makes 15 so all u have to do is times 15 by 4 and there got ur answer this will not go for every question tho</h3>
Answer:
18
Step-by-step explanation:
x² = 16² + 30² - 2(16)(30)cos 30°
x² = 256 + 900 - 960(0.866)
x² = 1156 - 831.36
x² = 324.64
x = 18.02
Approx. 18
Please mark my answer as brainliest
