Lucia has 18 pieces of ribbon that she uses to decorate presents. One ribbon's length is 5/6 of a yard. How many yards of ribbon does Lucia have?

15 yards

Step-by-step explanation:

From the question, we are given the information that Lucia has 18 pieces of ribbon that she uses to decorate presents and that the length of one ribbon is 5/6 of a yard.

Therefore, the number of yards of ribbon that Lucia has will be gotten by multiplying 5/6 by the total pieces of ribbon. This will be:

= 5/6 × 18

= 15 yards

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1