AYUDA PROFAVOR!! ayudenme con esto pls
I Parte. Reducción de términos semejantes de signos iguales

22x3y3 + 30x3y3 =
-18a2b2c2 - 25a2b2c2 =
21x3y3z3 21x3y3z3 =

II Parte. Reducción de términos semejantes de signos diferentes

70x3z2 - 15x3z2 =
- 47m3n3 + 23m3n3 =
21a3b2c2 - 21a3b2c2 =

III Parte. Reduzca los siguientes términos

13x2y3 - 15xy2 + 21x4y + 55xy2 - 71x2y3 =
-32a2b3 - 6mn3 + 17a2bc + 48mn3 + 20a2b3 =

area = length x width

length = 2 x width

32 = 2 x width x width

32 = 2 x width^2

36 = width ^2  

width = 6

length = 12

area is 32

perimeter = 2 x 12 + 2 x 6 = 24 + 12 = 36

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.