A gardening magazine suggested that a good mix for a flower bed is 20 pails of clay dirt, 15 pails of sand, and 5 pails of manure. Express this in lowest terms. 7 20:15:5 10:7:3 4:3:1 4:3:2

C, 4:3:1

Step-by-step explanation: C, 4:3:1, because the GCF of 20, 15, aand 5 are 5, therefore 20/5=4, 15/5=3 5/5=1 and that's the lowest terms in ratio form.

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