17. [-11 Points] DETAILS
TANAPCALC10 2.5.074.
For what value of k will the function f be continuous on (-infinity, infinity)?
f(x)
x² – 16
x + 4
(k k
. if x # - 4
if x = -4
k=

Arestaurant offers delivery for their pizzas. the total cost the customer pays is the price of the pizzas, plus a delivery fee. one customer pays $23 to have 2 pizzas delivered. another customer pays $59 for 6 pizzas. how many pizzas are delivered to a customer who pays $86?