Constants are anything that is not a variable. A variable is a letter. So think about it... What would be the constants? What is not a letter? TIP: Make sure you include - sign!_
70% equals to 70/100 in fraction form.
But, you need to write it in simplest form. so, divide both of them from 10 'cause they both can divide completely by it.
70/100 = 7/10
so, your answer is 7/10
Y² + 10z - 10y - yz = (y - 10)(y - z)
Y+4= -4(x-3)
y+4=-4x+12
4x+y=8
