Answer:
Alex timed 7 by 2 instead of 7 times 7 because 7^2 is an exponent.
Answer: f= 5/2x +1
Step-by-step explanation: This is really simple actually, all you have to do is take the equation and since it's "f(-2)" you plug in -2 for your variables. Hope this helps! : )
45 is the answer for the expression
I didn't get the question whether it was 42 or 4×2
