2/3 of an hour= 40 minutes
3/4 of 40= 30 minutes
40- 30= 10
So, it took Bethany 10 more minutes to complete her science homework than her math homework.
Answer: 
<u>Step-by-step explanation:</u>
Area (A): 
Length (L): 
width (w): W
A = L x W
=
x W

= 
x W


Answer:
12. 18g+80
13. 13x+13
14. 17s
15. 3t
Step-by-step explanation:
On each you just combine the like terms and simplify the equations.
(Add/subtract all of the common numbers)
Answer:
Step-by-step explanation:
Perimeter is 2l+2w
100 =2(30) + 2w
100 =60 + 2w
-60 -60
40 = 2w
w=20 meters.