Add them all up.
A triangle has 3 sides, and you said each side is 3. So:
3+3+3 = 9
Is this question correct ?
-1/2
To find the slope of the line between two points, we use the equation (y2-y1)/(x2-x1)
Substitute the values given for the xs and ys:
(7-5)/(-1-3)
2/(-4)
simplify: -1/2
Alright so here it is
325/50=6.5
6.5*2=13
It would take 13 millimeters of sunscreen to cover 325 cm of skin
