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59.) 80 smokers, 280 nonsmokers.

61.) 240 men, 200 women

Step-by-step explanation:

59.)

Start with:

Cross product.

Subtract from both sides of the equation.

Add to both sides of the equation.

Divide by

Substitute in your x-value.

61.)

Start with:

Combine like terms.

Divide by the coefficient of , which is

Substitute.

x = 25

step-by-step explanation:

a^2+b^2=c^2

7^2+24^2=c^2

49+576=625

sqrt625=25

x=25

answer: the anser is 3

step-by-step explanation:

c- 2o is equal to 9