Answer:
∠AFB = Acute
∠DFB = Obtuse
∠CFD = Right
Step-by-step explanation:
∠AFB is acute b/c its less than 90°
∠DFB is obtuse b/c it more than 90°
∠CFD is right b/c it's exactly 90°
Answer:

Step-by-step explanation:
Given

Required
Determine its equivalent

Start opening the brackets:

Collect Like Terms

Add and subtract like terms

5 cupcakes = $7.5
18 cupcakes = $27
16x+3
x will be replaced with Goran's savings
Width = 5, length = 9
Area = length * width
length = (2 * width) - 1
sub equation for length
45 = (2w - 1) * w
45 = 2w^2 - w
2w^2 - w - 45 = 0
(2w - 9)(w - 5)
2w - 9 = 0
w = 9/2, l = 8 no
w -5 = 0
w = 5, l = 9 yes