Answer:
84
Step-by-step explanation:
x = number of girls
The total for boys is 2x * 81 and for girls it would be 90x
Therefore, the equation goes like this:
2x * 81 + 90x
Then simplify, and set to equal 3x...
3x = 252
Which is the same as
x = 84
Thank me later :)
I'm confused on what you're asking, but this is scientific notation on the first one of 0.0000855. 8.55 x 10^-5
Frances will receive 26 paychecks