There are 17 men and 26 women in a choir. The choir is going to sing at a concert.
One of the men and one of the women are going to be chosen to make a pair to sing the first song.
(a) Work out the number of different pairs that can be chosen.

(2)
Two of the men are to be chosen to make a pair to sing the second song.
Ben thinks the number of different pairs that can be chosen is 136
Mark thinks the number of different pairs that can be chosen is 272
(b) Who is correct, Ben or Mark?
Give a reason for your answer.

i just need help on b why is it 17x16 and then divide by 2 ? like why divide by 2 why not leave it as 17x16

where is the triangle?

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500

2 apples

step-by-step explanation:

taking away equals subtraction. 6-4=2