Commutative Property of Addition <span />
Answer:
d.
Step-by-step explanation:
Since it's an isosceles triangle, WX=WZ= 2n-5
Perimeter = n + (2n-5) + (2n-5)
= 5n - 10
The Perimeter is given to be 20
5n - 10 = 20
5n = 30
n = 6
R x 9
multiplication problem, r times 9
could also be 9r
No. x cannot equal 2 and 7
Multiplying -15 by 60 yields -900, so the amount of water in the pool changes by -900 gallons in one hour.
