If liam arranges chairs in 9 rows of the same length he has 3 chairs left over if he arranges the chairs in 7 rows of that same length he has 19 left how many chairs does he have

75 chairs

Step-by-step explanation:

let x=number of chairs per row

let y=total number of chairs

use linear function:

y=9x+3

y=7x+19

9x+3=7x+19

9x-7x=19-3

2x=16

x=8

plug 8 into either equation

9×8+3=75

7×8+19=75

6,250

step-by-step explanation:

to get the area, multiply 360 by 160.(57,600)

to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can hold. divide 1000 by 8(125) to get the unit rate(how many square feet one pound of fertilizer can hold)and multiply it by 50(6250). if i haven't made a mistake, that is the answer.