40$ - 100% (full price)
x$ - 70% (100-30=70%)
40 * 70 = 100x
2800 = 100x
x = 28
Answer 28$
or
40$ = 100%
then 1% = 40/100 = 0.4$
so 70% will be 0.4 * 70 = 28$
Answer:
y=-3/7x+3
Step-by-step explanation:
A(0;3) B(7;0)
(y-yA)/(yB-yA)= (x-xA)/(xB-xA)
y-3/-3= x/7
7y-21=-3x
Answer:

(Please vote me Brainliest if this helped!)
Step-by-step explanation:








with that template in mind.
since the original or "parent" function is y = x²−4x+3, if we change the "x" argument to "x-2", we end up with a horizontal shift.
the x-2 part would be in the template the Bx+C part, with B = 1 and C = -2, or a horizontal shift to the right of 2/1 or 2 units.
since the parent function has a point at (2, -1), if we move that horizontally only to the right, we'd end up at (4, -1).
Answer:i need to know
Step-by-step explanation:
What is it please tell me