Answer:
add the numbers up so 50 plus 95
Slope of bc is 3/-9
perpendicular line hs slope of 9/3=3
<span>let x=cost of one hot dog
let y=cost of one hamburger
5x+4y=13
4x+5y=14
20x+16y=52
20x+25y=70
subtract
-9y=-18
y=2
4x=14-5y=14-10=4
4x=4
x=1
cost of one hot dog=$1.00
cost of one hamburger=$2.00</span>
3a^2 + 9
= 3a^2 + 3^2
= 3(a^2 + 3)
(0,0)(1,3)
slope (rate of change) = (3-0) / (1-0) = 3