Answer: 25%
Step-by-step explanation:
markup or gain is 5-4 = $1
% markup = 1/4 *100
=25℅
Answer:

Step-by-step explanation:

Y = 3x-5
(3, ) - your x is 3 in that case, y = 3*3-5 = 4 - answer (3,4)
(4, ) - your x is 4, y = 4*3-5 = 7 - answer (4,7)
( ,10) - your y is 10:
10 = 3x - 5
3x = 15
x = 5 - answer (5, 10)
Solution pairs - (3, 4); (4, 7); (5, 10)
The slope would be -2.
Slope=(y2-y1)/(x2-x1)
Using pythog:-
if the sum of the square of the shorter sides equal to the square of the longest one
it means they represents a right triangle.
so

which is

so yea it represents a right triangle