Which could be a binomial expansion of (4x + y)? 16x2 + xy + y2
16x2 + 4xy + y2
64x3 + 16x²y + 5xy2 + y3
64x3 + 48x²y + 12xy2 + y3

answer: the answer is 5/22

step-by-step explanation: if you subtract 17 from 22 the answer is 5 therefore the remainder of students are female

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

hm let me think hm think think hm think yes