Darnell and Nicholas are comparing the international calling plans on their cell phones. On his plan, Darnell pays $1 just to place a call and $3 for each minute. When Nicholas makes an international call, he pays $5 to place the call and $1 for each minute. A call of a certain duration would cost exactly the same under both plans. What is the duration?

step-by-step explanation:

b and c

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

5/20 so 25%

step-by-step explanation: