A number is divided by 30 and has a quotient of 9 with a remainder of 21.

291

Step-by-step explanation:

a/b = c is equal to a = bc

x/30 = 9 (plus 21)

You can multiply the divisor (30) by the quotient (9) and add the remainder

270+21 = 291

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