Answer:
d) 330
Step-by-step explanation:
The number of ways can a dance instructor send 4 of her 11 students to summer dance program is C(11 , 4)
That is
ways
by using formula 
now simplification

= 
after cancelling 7! and on simplification
= 
after cancellation we get 330 ways
The number of ways can a dance instructor send 4 of her 11 students to summer dance program is 330
C is the answer to you question
Answer: the answer is 88.2 and your welcome!!
Step-by-step explanation:
Tan x=31
x= tan^-1 (31)
x=88.2 degrees
The answer is 2/3 (i think ✨)