So i missed a day at school and don't know how to solve 1.2/8.4 = w/14.
Can anyone help.

To find W.

1.2/8.4=w/14.

then cross multiply

which is 14×1.2=8.4w.

16.8=8.4w.

w=2

the answer would be the last one (constat) she stays at the same rat every two mintues it goes up by 0.4

step-by-step explanation:

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.