Answer:
Below in bold.
Step-by-step explanation:
b.
If we drop a perpendicular line from B to AC and mark the point D on AC, we have 2 right triangles, with AD = DC = 16 cm.
So tan O = BD/16 = 15/8
BD = (16*15)/8
= 2*15
= 30.
So the area of triangle ABC = 16*30
= 480 cm^2.
Answer:
y = 4x + 5
Step-by-step explanation:
4 times the number of shirts, which is unknown, +$5 no matter how many.
Answer:
60
Step-by-step explanation:
m and n are parallel the 3x=180
180/3=60
Answer:
x = g/cy
Step-by-step explanation:
To solve for x, we need to isolate it on one side of the equal sign algebraically. In this case, since  is being multiplied by  and  we can divide both sides by  and  to isolate 
sweater = s, blouse = b
s + b = 57, s = 2b
2b + b = 57, 3b = 57, b = 19.
s = 2b = 2(19) = 38.
sweater costs 38 dollars, and blouse costs 19 dollars