Saja began solving the problem shown. 3
4,605
Х 7
5
Which option describes the meaning of the 3 that Saja wrote in the problem?
A. It shows the number of tens in the product of 5 x 7.
B. It shows the number of tens in the product of 0 x 7.
C. It shows the number of ones in the product of 5 x 7.
D. It shows the number of ones in the product of Ox7.

The table below shows the approximate masses of a dust particle and a grain of pollen. dust particle 0.000000778 g grain of pollen 0.00000000155 g the mass of a dust particle can be estimated and written in the form a × 10^b, where a = 8 and b = the mass of a grain of pollen can be estimated and written in the form a × 10^b, where a = 2 and b = based on the estimates, the mass of a dust particle is approximately blank times larger than the mass of a grain of pollen.