Suppose you have a group of 10 children consisting of 4 girls and 6 boys. how many four -person teams can be chosen that consist of two girls and two boys

4 girls      and  6 boys

2(2 girls) and  3(2 boys)

   ₄C₂       x     ₆C₂

=     6        x       15

=            90

90 different teams

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation:

yeah i know the problem you need. i am taking it right now. the answer is step 3

~mickey