Michael's little brother plays with the building blocks what are in the shape of a cube in a cube has an edge length of 15 mm what is the surface area of this cube15 mm290 mm21350 mm23375 mm2

Your answer would be C)1,350 mm

Step-by-step explanation:

face area = (15 mm)² = 225 mm²

cube area = 6 × face area = 6×225 mm² = 1350 mm²

your answer would be 12

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.