Answer: 4
Step -by-step :
7+7+7=21
5+12+a=
17+a
21-17=4
The area of the square can be found by...
0.75 • 0.75 = .5625
The area of one triangle can be found by...
1/2 • 0.8 • 0.75 = .3
In order to find the total surface area of the figure, you must...
.5625 + 4(.3) = 1.7625
So the answer is D
I would say that the unfinished puzzle has more than one piece and the missing piece is only one, itself.
45+(45*.15)=
45+6.75=51.75
6.75 is the tip, 51.75 is the total bill
3 divided by 1/8 = <em>24 and 0/8</em>
