Answer:
the selling price is $28.50
i m confused on part b if you explain it i could help
Step-by-step explanation:
Answer:
x + 52 + 78 = 180
Step-by-step explanation:
By angle sum property of a triangle:

The answer is 20 because you dive it
Answer:
c
Step-by-step explanation:
substitute (2,1) and (5,4) into each equation
2-1=1 and 5-4=1 so c is correct
You have to use sin, cos, tan and find the length of the last side and other angles. Then you have to put an imaginary line down the middle and use the sin, cos, tan to find the height and then do 1/2 base times height.