HELP ASAP OMG GIVING BRAINLIEST! PLEASE HELP PLEASE ASAP

Side QR is 1.2 units long.

Step-by-step explanation:

Quadrilaterals ABCD and PQRS are both similar. The scale factor from ABCD to PQRS is 3/5. Figure this out by dividing corresponding sides.

1.8 / 3

18 / 30

3 / 5

Side BC (the side that corresponds to QR) is 2 units long. Multiply that by 3/5 to get the length of QR.

2/1 * 3/5

6/5

Side QR is 1.2 units long.

5

step-by-step explanation:

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.