Answer:
15h + 16
Step-by-step explanation:
Answer:
420 meters
Step-by-step explanation:
Perimeter = 2L+2W
80+60=140
Three times around
140x3=420meters
Answer:
a = 132 ft^2
Step-by-step explanation:
Area of triangle
a = (1/2)bh
---------------------------
Base
a = (1/2)(8)(6)
a = 24 ft^2
----------------------
Each side
a= (1/2)*(8)(9)
a = 36
All three sides
a = 36 * 3
a = 108 ft^2
-----------------------
Total area
a = 24 + 108
a = 132 ft^2
Answer:

Step-by-step explanation:

we can only take common factor
18 and 12 have 6 as a common factor
in variables we have
and
so we see clearly that it is 
so we have

as far as you can go
a) The sum of your ages is F + (F+B) = 2F+B.
b) In 3 years, the sum of your ages will be (F+3)+(F+B+3) = 2F+B+6.
c) The difference of your ages at any time is B.