Well the formula for area is A=LxW where L=length and W=width
so A=2.5(1) but this in inches so convert to feet
half inch=15 ft so 2.5 inches=
![\frac{2.5}{2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2.5%7D%7B2%7D%20)
(15)=5(15)=75 ft
half inch=15 ft so 1 inch=2(15)=30ft
Now we can rewrite our area equation: A=(75ft)(30ft)=2250 ft²
Find the slope first: 4=x 2=y 1=x2 -7=y2
-7-2/1-4=-9/-3
So the slope is -9/-3
so far we have y=-9/-3x-b
then we replace
2=-9/-3(4)-b
2=-9/-3*4-b
2=12-b
12-2=10
10=b
So y=3x-10
Answer:
650
Step-by-step explanation:
if it 20% off that means $520 is 80% of actual price
multiply 520 and 100 then divide the result with 80