Ineed asap and my brain isn’t what’s (4k + 7j) ^2 ?

You would have to use the foil method since it is squared.

The answer would be:

16K^2+28Kj+28Kj+49j^2

--> 16K^2+56Kj+49j^2

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.