Answer:
$7.02
Step-by-step explanation:
Price of 92 sheets = 92 * $0.50 = $46
Price of 2 packages = 2 * $19.99 = $38.98
Savings = $46 - $38.98 = $7.02
9 plus ten is 19
f(x) = 2x - 3
f(-9)= 2(-9) - 3 = -18 - 3 = -21
f(-3) = 2(-3) - 1 = -6 - 1 = -7
f(1)= 2(1) - 3 = 2 - 3 = -1