Answer:
Cost for each:
box of cards=$12.95
stamp=0.44
The number of quantity for each:
box of cards=1
stamp=16
Now the equation should be as follow:
quantity(box of cards)+quantity(stamp)
1($12.95)+16($0.44)
$12.95+$7.04
$19.99
The total cost is $19.99 or simply 19 dollars and 99 cents
Step-by-step explanation:
Answer:

Step-by-step explanation:

Answer:
£172.50
Step-by-step explanation:
Sorry if it's wrong I'm not exactly a maths genius but: 7x15=£105+15x1.5x3=£172.50
Answer:
I'm pretty sure it is 4units
Step-by-step explanation:
try using a^2+b^2=c^2 formula to solve!
Hope this helps!
The slope would represent 1200 not sure though y= mx + b