A recipe calls for 2/3 cup of chopped walnuts. You chop 4 walnuts and get 1/4 of the amount you need. How much more of a cup of chopped walnuts do you need? All of your
walnuts are the same size. How many more walnuts should you chop? Explain

For 1 flavor there are 9 topping

Therefore, for 5 different flavors there will be 5*9 choices

No of choices= 5*9

=45 

The solution is in the following image

The answer is in the image 

The answer is in the image 

The solution is given in the image below

Speed=Distance/time

Here,

distance=15m

time=1sec

speed=15/1=15m/sec

Distance=Speed*time

time=15min=15*60sec=900sec

Distance travelled in 15 min=15*900=13,500m

=13500/1000 km=13.5Km

tip=18% of 75.45

     =18/100 * 75.45 = $13.581

Tip = $13.581

Cost before sale tax=$46.00

Cost after including tax=$48.76

Sale tax=$48.76-46.00

=$2.76

we know,

sale tax=((sales tax rate)/100) * cost before sale tax

2.76=((sales tax rate)/100) *46.00

sale tax rate=(2.76*100)/46

                   =276/46

                    =6%

There fore sales tax rate=6%

The solution is given below