Please help on equations i don’t know how to do this so please help me. i’ll put brainliest 

Mal didnt distribute correctly

Noah- should have brought the 12x over and subtracted it from the 15x

Step-by-step explanation:

Hi,

14x - 2x + 3 = 3(5x+9)

12x +3 = 3(5x+9)

12x + 3 = 15x +27

12x = 15x + 24

-3x = 24

3x = -24

x = -8

→ Mai didn't multiplicate 5x first.

→ Noah didn't subtract 15x

✅(◠‿◕)

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.

asdsad

step-by-step explanation: