Answer:
Step-by-step explanation:

Comparing this to the form a+b√5, we see that ...
a = 3/2
b = -1/2
X=20
180-77=103
so then simplify (6x-17)=103
6x=120
x=20
Answer:
Step-by-step explanation:
pi*r^2=area
1*1=1
1*3.14=3.14
the area is pi itself
Basically the real one is 80 times the picture
80 times 3/4=80/1 times 3/4=240/4=60in=5ft
it is 5ft long or 60in
Answer:
180 - 90 = 90
half of 90 = 45
40 and 50??
Step-by-step explanation: