Identify the function in which y varies directly with x.
y = 6x - 2
y = 0.3x
y = ox
y = 5x + 1

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?

What is the value of x in the equation7x+2y=48 when y=3

Hundred and tens tables to make 430 in five different ways