How many ways are there to distribute 8 different books among 21 children if no child gets more than one book? a. Combination; Subscript 13 Baseline C Subscript 8 Baseline = 1287 b. Combination; Subscript 21 Baseline C Subscript 8 Baseline = 203,490 c. Permutation; Subscript 21 Baseline P Subscript 8 Baseline = 8,204,716,800 d. Permutation; Subscript 13 Baseline P Subscript 8 Baseline = 51,891,840 pleasee help asap

answer:

3 bags of apples and 2 bags of oranges.

step-by-step explanation:

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -