10.  mr. bryant is trying to figure out which class project to work on for community service. he surveyed the junior and senior students about their preferred project. the frequency table shows the responses of the students.
 
juniors seniors total
park cleanup 30 26 56
food kitchen 50 34 84
clothing drive 10 50 60
total 90 110 200
 
determine the joint frequency of being a senior and wanting to have a park cleanup. explain what this answer represents.

unless if u could do my questions, if not i wouldn't want to

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15

brandon has 4344 video games.  

step-by-step explanation

7373 - 2929 = 4344

pls let me know if it was correct