Answer:
Discount = $10
Sales Price = $30
Step-by-step explanation:
Discount
= 25% of marked price
= 25% x $40
= (25/100) x 40
= $10
Sales price = Marked price - Discount = $40 - $10 = $30
Answer:
The derivative is

Step-by-step explanation:
The function is given by

Differentiate with respect to x, we get

M= -6/5
hope this helped!!
Answer:
ok
Step-by-step explanation:
not really hard if you concentrate
right now check the curve and see if you'll see x axis
Step-by-step explanation:
the volume of a box (or prism) is always
length × width × height
so, box A
13 × 12 × 16 = 2,496 in³
box B
18 × 25 × 16 = 7,200 in³
box C
12 × 14 × 22 = 3,696 in³
box D
20 × 22 × 17 = 7,480 in³
so, she can use B or D.