Which equation shows a proportional relationship? A) y= 3x - 1
B) y= 5x
C) y= 3x^2
D) y= 1/5x + 10

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?

A6 ounce bottle of dressing costs $1.56 a 14 ounce bottle costs $3.36 a 20 ounce bottle costs $5.60 which has the lowest cost per ounce

Y= a(x-3)squared-1 what is the value of a