Which statement correctly describes this expression? 3n| - 7
1. the absolute value of the difference of three times a number and 7
2. 7 decreased by the absolute value of three times a number
3. 7 subtracted from the absolute value of three times a number
4. the absolute value of three times a number increased by 7

answer: the first one

step-by-step explanation: use a calculator and divide the minutes by the dollars.

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answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet