Use a table to compute the product below. (5x2 - 4x - 1)(7x2 + 9x + 8)   a. 35x4 + 17x3 + 3x2 - 23x - 8   b. 35x4 + 17x3 - 83x2 - 41x - 8   c. 35x4 + 17x3 - 3x2 + 41x - 8   d. 35x4 + 17x3 - 3x2 - 41x - 8

answer: for each 3 girls there is 2 boys . 3: 2

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mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations: