Answer:
-83
Step-by-step explanation:
so plug in 10 in 8x. So it is 10*-8 -3.
-80-3=-83
f(x) = 8x - 3
f(-10) = 8(-10) - 3
f(-10) = -80 - 3
f(-10) = -83
B. $1.60 per notebook
Because:
4 notebooks ÷ $2.50 (4 notebooks cost) = $1.60 per notebook
C
the square root of 5=2.2361
yes