‼️ ‼️ a survey asks a teacher and students whether they would like the new school mascot to be a viking or a patriot.
a. yes, they are independent because p(student)= 0.80 and p(student/viking) = 0.68.
b. no, they are not independent because p(student)=0.80 and p(student/viking) ≈0.94
c. yes, they are independent because p(student)= 0.80 and p(student/viking) ≈ 0.94
d. no, they are not independent because p(student)=0.80 and p(student/viking) ≈0.68

me

step-by-step explanation:

the answer is 54 sq. ft. i just did this question, on odyssey ware, and it was right. make brainliest.

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -