Answer:

Step-by-step explanation:
3p + 4r = q
3p = q - 4r

Answer:the median is 20 and the lower quartile is 16.5
Step-by-step explanation:
Answer:
9.99
Step-by-step explanation:
Answer:
Step-by-step explanation:
Astronomers were trying to find the weight of six planets - Mars, Venus, Pluto, Jupiter, Mercury and Saturn. The number of planets lighter than Mars was equal to the number of planets heavier than Venus. Saturn was heavier than Mars and Mercury was heavier than Pluto. Venus was lighter than Mars. Saturn was not the heaviest planet.
Answer:
Step-by-step explanation:
In school i did these but i have no clue how to do them.I will try though:)