10 years ago, rapunzel had 19 centimeters of hair, now her hair is 20,193 centimeters long, how long has her hair grown? in scientific notation-
1) 1*10^3
2) 2*10^3
3) 1*10^5
4) 2*10^5

The sixth grade art students are making a mosaic using tiles in the shape of right triangles.each tile has leg measures of 3 centimeters and 5 centimeters.i f there are 200 tiles in the mosaic what is the area of the mosaic.

Find the multiplicative inverse of 8-12i

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line