Dena cuts wood for a treehouse. She has five pieces of wood left over with lengths in centimeters: 12.7, 26 3/10, 15 4/5, 21 1/4, and 19.2. Question 1
Part A

Write and then evaluate an expression to find the total length of wood left over.

1/5^2 = 7.56/45

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or