The sum of two number is thirty. using z to represent the larger number, translate “fifty more than the smaller number” into a variable and simplify

z=larger number

z+?=30

z-50=smaller number

z+z-50=30

2z-50=30

2z=30

z=15

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is symmetric about the line y = 120,000.

step-by-step explanation:

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)