Me with this! i would really appreciate it.

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

How to write four times a number,minus 6,is equal to theee times the number+8 as an equqtion