Aforest covers 66,000 acres. a survey finds that 0.8% of the forested old-growth trees. how many acres of old-growth trees are there?

528

Step-by-step explanation:

Find 0.8% of 66,000

Do this through the proportional method.

x = unknown value

0.8% / 100

=

x / 66,000

Cross multiply

66,000 x 0.8

52,800

Now, since a percent is always over a 100, divide it by 100.

52,800/100

528

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation:

answer for #1 is c

answer for #2 is d

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