#4 is 47, 48, 49
47+48+49=144
Yes it is a function
Y=x(x-1)
X(x-1)
X to the 2nd power -1x
Hope that’s helps
Answer:
The correct answer is the second option
The <span>expression that represents n plus 7 multiplied by 3 is
(n + 7)(3)
The entire expression, (n + 7) is multiplied by 3 since it would be inconvenient to state the expression as given above if what is meant was
(n + 7x3). It would have simply been n plus 21.</span>

Find f(-3) for f(x) = 4(2)^x
((−3)(4))(2)
=(−12)(2)
=−24