Answer:
slope = 
Step-by-step explanation:
equation to find the slope: 
(0,4) (6,2)
=
= 
The answer is complementary angles since they add up to 90 degrees.
1.) y=|x+7|-3
Tip: If you google Desmos graphing calculator it will help majorly with these types of questions
Step-by-step explanation:
Marco bought 10 gifts = 11. 50
If 5 bracelets = 1.50 x 5 = 7.5
4 stickers = 4 x 1 = 4
So total cost = 7.5 + 4 = 11.5