How is this number read?

The third one

Step-by-step explanation:

C. eighteen and seventy-three hundredths

Step-by-step explanation:

A hundredth in standard form is 0.01.

So, 0.73 is read as seventy-three hundredths.

18.73 is the same, except "eighteen and" is added before.

18 = eighteen

. = and

73 = seventy-three hundredths

18.73 is read as "eighteen and seventy-three hundredths."

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

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