Jordan changed the dimensions of a rectangular picture measuring 20 cm wide by 25 cm high by a scale factor of 5/2. Does this scale factor represent a reduction or enlargement and what is the new width of the picture?

1. This is an enlargement and the new width is 50 cm.
2. This is a reduction and the new width is 8 cm.
3. This is an enlargement and the new width is 62.5 cm.
4. This is a reduction and the new width is 10 cm.

Step-by-step explanation:

Positive it's 1 or 3 because it's an enlargement

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

no ,sorry if you needed it but you can ask and try to see if any one will anwser ,

step-by-step explanation:

by good luck mark me as brainliest

have a nice day