How do you factor 12y^2-6y-90

Step-by-step explanation:

First, factor out the common term of 6:

To factor :

Multiply the coefficient of by the constant:

Now find factors of -30 that sum to the coefficient of , i.e. -1

Factors of 30:  1, 2, 3, 5, 6, 10, 15, 30

So factors of -30 that sum of -1 are:  -6 and 5

Rewrite the middle term of as :

Factor each pair of terms:

Factor out the constant term:

Therefore, the final factorization is:

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 answer is in the image 

The answer is in the image 

The answer is in the image 

The answer is in the image 

The answer is in the image 

The solution is given in the image below

Here,

tip=18%of $32

tip=(18/100)*32

=0.18*32

=$5.76

Total payment=32+5.76=$37.76