Is the class invertal also called the class size??

2.6. THE SIZE, OR WIDTH, OF A CLASS INTERVAL. The size, or width, of a class interval is the difference between the lower and upper class boundaries and is also referred to as the class width, class size, or class length.

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b.) divide by -5.

step-by-step explanation:

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