If nthe shop has a mark up rate of 50% and they cost 300 to buy you multiply 300 by 50% convert 50% to decimal
so you do .5*300=150
then you add 150 to 300 which means that the shop sells the skis for 450 dollars.
D is the answer i think it is at least
Range is the value of the output
basically
y=f(x)
since it is -4
y=-4 is the range
not listed
Supplementary angles
x+20+5x+10=180
6x+30=180
6x=150
x=25
Answer:

Step-by-step explanation:

Add 4 to both sides

Divide both sides by 3

Hope this helps!
(Please mark brainliest)