($9.20) 2 = $18.40 ...................
Step-by-step explanation:
Use the sine and cosine trig functions
21) cos(52)=13/x
x=13/cos(52)
x=21.1
22) sin(75)=6/x
x=6/sin(75)
x=6.2
Answer:
2.50$ off or 22.50$
Step-by-step explanation:
The answer is 7. 9 + 5 / 2 equals to 7. 9 and 5 and the two middle numbers.
