Gatsaki

The answer is 22

10+12 is 22

The answer is 17 

first you change you percentage to a decimal.

25% to .25 

then you multiply across 

.25*68= 

land you get 17.

You will have 9 groups and the max will be 4 people in each group

5000(1+0.06/365)365*10

do parentheses first

(1+0.06/365)

0.06/365=.00016438356

1+.00016438356= 1.00016438356

5000(1.00016438356)365*10

now you just multiply across

5000*1.00016438356=5000.8219178

Pi(r)^2

Find the radius so you divide 10 by 2 

10/2=5

Then you plug it in 

3.14*(5)^2

5*5=25

3.14*25=78.5

so 78.5 is your circle

21 I'm just kidding 9+10= 19

a^2 +b^2= c^2 

-15+3-1/3

-15+3= -12

-12-1/3=12.3333 (repeating or) 12 and (1/3)

Cross Multiply 3 to the other side thus x=3

x/3=1/1

3*1=x*1

3=1